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Fix ERR_CACHE_MISS error in Google Chrome

One of the most popular and most used web browsers commonly used by Windows users is Google Chrome. This well-known web browser has been introducing various features recently in order to stay at the top. However, it makes the web browser a lot more complex and thus prone to errors. Although this may not be a big deal, it can be quite annoying as it can interrupt your web browsing.

There are various errors that can come up with this level of complexity of the web browser. One of these errors is the “This site can’t be loaded from the cache, ERR_CACHE_MISS” error message that can suddenly appear while you browse the web using your Google Chrome browser on your Windows 10 PC.

Take note that when you encounter this particular error, there really is no direct fault in the Chrome browser as there are also issues with caching the website data locally in the computer. Moreover, this error can also occur when a website is coded in an incorrect manner or if there are some browser extensions or toolbars that are in conflict with the proper functioning of the website.

To fix the ERR_CACHE_MISS error in Google Chrome, refer to the possible solutions laid out below.

Option 1 – Try clearing browser data

There are times when some data in the browser is conflicting with the loading of the website and triggers errors like ERR_CACHE_MISS. And so you can try to clear your browser’s data. This might be a very basic solution but oftentimes it works in fixing this kind of error in Google Chrome. Follow the steps below to clear the data in your browser.

  • Open your Google Chrome browser.
  • After that, tap the Ctrl + H keys. Doing so will open a new panel that allows you to delete the browsing history and other data in your browser.
  • Now select every checkbox that you see and click on the Clear browsing data button.
  • Then restart your Chrome browser and check if you can now open any website or not.

Option 2 – Try using the Developer Tools

You can also try using the Developer tools in Google Chrome to help you fix the ERR_CACHE_MISS error. Refer to the steps below to do so.

  • Open Google Chrome.
  • Tap the Ctrl + Shift + I keys on your keyboard and then tap the F1 key to open the Settings tab inside the Chrome Developer Tools.
  • Next, select the Disable cache option while DevTools is open and apply those settings.
  • After that, refresh your browser and check if the entries you’ve seen previously in the Network tab are gone.
  • Now try to load the same webpage again and see if the problem is resolved.

Option 3 – Reset Winsock, TCP/IP & Flush DNS

Resetting Winsock, TCP/IP, and flushing DNS might help you resolve the ERR_CACHE_MISS error. To do so, follow these steps:

  • Right-click on the Start button and click on Command Prompt (administrator) so you can pull up an elevated Command Prompt.
  • After that, execute each one of the commands listed below. And after you typed in one after the other, you have to hit Enter.
  1. netsh winsock reset – type in this command to reset Winsock
  2. netsh int ip reset resettcpip.txt – type in this command to reset TCP/IP
  3. ipconfig /flushdns – type in this command to flush the DNS cache
  • Next, restart your PC and check if the problem’s fixed.

Option 4 – Get rid of any conflicting browser extensions

  • Open Chrome and press Alt + F keys.
  • Go to More tools and click Extensions to look for any suspicious browser extensions or toolbars.
  • Click the Recycle bin and select Remove.
  • Restart Chrome and press Alt + F keys again.
  • Proceed to On Startup and mark Open a specific page or set of pages.
  • To check if the browser hijacker is still active, click Set pages, if it is active, overwrite the URL.

Note: If removing the browser extensions or toolbars didn’t work, you can also try to reset your Google Chrome browser.

  • Open Google Chrome, then tap the Alt + F keys.
  • After that, click on Settings.
  • Next, scroll down until you see the Advanced option, once you see it, click on it.
  • After clicking the Advanced option, go to the “Restore and clean up option and click on the “Restore settings to their original defaults” option to reset Google Chrome.
  • Now restart Google Chrome.

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Enable or Disable the Reserved Storage
A lot of users complain about low storage space each time a Windows Feature update is released as well as to complain about not being able to download the updates, slow update experience, and many other complaints. The main issue is that many users do not have enough storage space available on their PCs. And now to make sure that none of the updates gets stuck because of low storage space, Microsoft presented the Reserved Storage feature which comes preinstalled with v1903 or those where v1903 was clean installed. This guide will be showing you how you can enable or disable the Reserved Storage in your Windows 10 computer. As you know, the Windows Update process should have enough space so that it can download, extract and apply the update on the computer. Usually, the size of the Reserved Storage is around 7GB which gives enough space for the update, temporary files, system caches, apps, and many more. And according to Microsoft, the size of the Reserved Storage space will vary from time to time and will depend on how you use your computer.

Explanation

The Reserved Storage space feature is enabled by default on devices that come preinstalled with the May 2019 update or after performing a clean installation of the Windows 10 OS. To check if your computer has this feature, you need to go to Settings > System > Storage and from there click on the “Show more categories” link and then click on the “System & reserved” option. However, if you can’t find the Reserved Storage from the list, then it’s probably because your computer has limited space on the hard disk or it is not a fresh or new install. On the other hand, if you have this feature but have no use for it and want to disable it instead, then read on as this post will also show you how it’s done.

Solution

Keep in mind that when you disable the Reserved Storage feature, chances are, you might be unable to enable it back so you need to make sure that it’s really what you want to do before you disable it permanently. So if you really want to disable Reserved Storage, you can do so using the Registry Editor. Before you proceed, you have to create a System Restore point first and then carry out the following steps.
  • Tap the Win + R keys to launch the Run utility and type “Regedit” in the field and then tap Enter to open the Registry Editor.
  • Next, navigate to this registry path: ComputerHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionReserveManager
  • From there, double click on the DWORD named “ShippedWithReserves” and set its value to “1”.
  • Once you’re done, restart your computer and see if the Reserved Storage feature is now gone.
On the other hand, if you want to reduce the Reserved Storage space, there are two ways you can do that. First, you can go to Settings > Apps > Apps & features > Manage optional features and from there, uninstall the optional features that you do not use. The second one is you have to go to Settings > Time & Language > Language and then uninstall the languages and their add-on which you don’t use. Note: The Reserved Storage feature is also used by system processes and apps to create temporary files and once the Reserved Storage space fills up, Windows 10 will delete them automatically. It is undeniable a useful feature so disabling it is not recommended but if you are running on low storage space and don’t have much choice, then you may disable it at your own risk.
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How to Fix msrtn32.exe error or high CPU usage
If your Windows 10 computer slows down, the first thing you can do is to check the status of the resource usage in the Task Manager. In such cases, it shoots up to even 1000% which causes the system to either hang or freeze since some programs are using a major chunk of system resources. And this is the case with msrtn32.exe. Msrtn32.exe is a malicious file that may try to steal your digital currency. It can get installed on your computer when you install a browser plugin or extension that can modify the default settings of browsers, the content of web pages, search results, as well as display tons of intrusive ads. So if you see msrtn32.exe under the Processes tab of the Task Manager If you see msrtn32.exe under the Processes tab of your Task Manager, refer to the suggestions given below to get rid of it and restore your computer’s normal function. Before you proceed, take note that this executable file is found in the following location:
C:/Program Files(x86)msrtn32

Option 1 – Delete the folder where msrtn32.exe is located

The first thing you can do is to go to C:/Program Files(x86)/msrtn32. From there, look for the malicious executable file and delete its folder. If you are not able to delete the folder, make sure that you’re logged in as administrator and then try again.

Option 2 – Try scanning your computer using Windows Defender

Since you are dealing with a malicious file, if you weren’t able to delete the folder where the file is located, you can scan your computer using the built-in Windows Defender program and then eliminate the malicious file. Follow the steps below to do so:
  • Tap the Win + I keys to open Update & Security.
  • Then click on the Windows Security option and open Windows Defender Security Center.
  • Next, click on Virus & threat protection > Run a new advanced scan.
  • Now make sure that Full Scan is selected from the menu and then click the Scan Now button to get started.
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Fix Generic PnP monitor driver issue
Universal PnP or plug-and-play monitors use a generic PnP Windows driver. Whenever a user plugs a USB device or monitor into a PC the system will automatically identify the device and it will install the proper driver for smooth running. Generic PnP Monitor in Windows 10 means that Windows 10 installed a monitor driver as the PNP did not recognize the device. This generic PnP monitor driver may not work perfectly like the manufacturer’s one. It can lead to issues like unable to set the best monitor resolution and the screen refresh rate. Therefore, it is important to fix this issue. All of that being said let us fix your PnP display driver issue.
  1. Reconnect monitor

    Always try this first, just by unplugging the monitor and then plugging it back may resolve the issue, if the monitor was not detected properly the first time, there are very high chances that this method will resolve the issue.
  2. Check if the Device Manager is reporting an error and update the driver

    If the hardware is functioning properly then the issue might be in Windows not detecting device or driver malfunction. In any case, the Device Manager will be the one who will report this problem. In order to check to see if the driver is properly working press ⊞ WINDOWS + X to open the hidden start menu. keyboard with windows and x marked Once it opens, click on Device Manager to open it, If you have a driver device error inside Windows, you should see it immediately when entering the Device Manager, it will have a yellow exclamation mark beside it. Right-click on it and choose update driver.
  3. Reinstall driver

    If driver update failed or you already have the latest drivers, reinstalling them could fix the issue since drivers might have corrupted during installation of some update or application. Follow steps from point 3 to get to the driver in Device Manager, then right-click on it but instead of update choose to uninstall. Reboot Windows once the driver is uninstalled and Windows will install a new one automatically. If you do not want to update drivers automatically install the latest driver for your device, then reboot.
  4. Check Windows update

    Check to see if the latest Windows update is installed, update your Windows if needed
  5. Fix driver issue with DRIVERFIX

    If everything else fails, get DRIVERFIX, a premium solution for your PC issues, and fix driver errors.
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Restoring accidentally deleted system files
There are times when we delete a system files without meaning to on your Windows 10 computer. This happens a lot for users sometimes mistake a system file for a malware-laden file or junk file when it’s actually a system file from the System32 or SysWOW64 folder. In such cases, it could affect your computer. For instance, you might not be able to reboot your PC or open Settings. If you have removed system files from any of these folders by accident and you desperately want to restore them, read on, as this post will guide you in resolving the problem. Restoring them isn’t actually hard, just make sure that you have system admin access. The good thing is that there exists Windows Resource Protection which protects registry keys and folders and even critical system files. So if there are any detected changes to a protected system file, the modified file is restored from a cached copy located in the Windows folder. However, if the Windows Resource Protection program fails to restore these files, you need to check out the given fixes below.

Option 1 – Run System File Checker scan

To restore the system files you deleted, you can try running System File Checker or SFC scan. System File Checker is a command utility built into your computer that helps restore corrupted files and missing files. Refer to the following steps to run it:
  • Boot your PC into Safe Mode.
  • Hit the Win + R keys to launch Run.
  • Type in cmd in the field and tap Enter.
  • After opening Command Prompt, type in sfc /scannow
The command will start a system scan which will take a few while before it finishes. Once it’s done, you could get the following results:
  1. Windows Resource Protection did not find any integrity violations.
  2. Windows Resource Protection found corrupt files and successfully repaired them.
  3. Windows Resource Protection found corrupt files but was unable to fix some of them.
  • Reboot your computer.

Option 2 – Try to run the DISM tool

Aside from System File Checker, you can also run the DISM or Deployment Imaging and Servicing Management Tool as it could help in restoring the system files on your Windows 10 computer. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth” which could help you resolve the problem.
  • Open the Command Prompt with admin privileges.
  • Then type in the following commands and make sure to hit Enter right after you type each one of them:
    • Dism /Online /Cleanup-Image /CheckHealth
    • Dism /Online /Cleanup-Image /ScanHealth
    • exe /Online /Cleanup-image /Restorehealth
  • Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 3 – Try performing a System Restore

Running System Restore can also help you bring back the system files. You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.
  • Tap the Win + R keys to open the Run dialog box.
  • After that, type in “sysdm.cpl” in the field and tap Enter.
  • Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
  • After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

Option 4 – Try to run Automatic or Startup Repair

Startup Repair, previously known as Automatic Repair, is an advanced tool in Windows that can help you diagnose various system issues, including this one. This tool will scan system files, configuration settings, registry settings, and so on in order to fix the problem on its own. To run Startup Repair, all you have to do is boot into the Advanced Startup Options and then go to Troubleshoot > Advanced option > Startup Repair and then run it. This will resolve the problem if you have deleted any system file that’s essential to your Windows 10 PC.

Option 5 – Reset your computer

  • Tap the Win key or click on the Start button located in the Taskbar.
  • Then click on the Power button at the bottom right portion of the screen.
  • Next, press and hold the Shift key on your keyboard and then click on Restart. This will restart your Pc into the Advanced Startup options.
Note: Once you have access to the Advanced Startup options, you have to go to the setting which allows you to Reset your Windows 10 PC. All you have to do is select Troubleshoot > Reset this PC to reach the following screen Afterward, select either the “Keep my files” option and then proceed to the next on-screen instructions that follow to reset your Windows 10 computer without losing your files.
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Fixing Tcpip.sys Blue Screen Error in Windows
One of the most common Blue Screen of Death errors you can encounter on your Windows 10 computer is the Tcpip.sys Blue Screen error. The Tcpip.sys file is a driver file that is associated with the Transmission Control Protocol over Internet Protocol. When you see this kind of BSOD error, you may see any of the following error descriptions:
  • IRQL_NOT_LESS_EQUAL
  • KMODE_EXCEPTION_NOT_HANDLED
  • PAGE_FAULT_IN_NONPAGED_AREA
Whichever error description you got, you need to do use the following instructions below as a reference to obliterate the Tcpip.sys Blue Screen error.

Option 1 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like Tcpip.sys Blue Screen error. It can be found on the Settings Troubleshooters page. To use it, refer to these steps:
  • Tap the Win + I keys to open the Settings panel.
  • Then go to Update & Security > Troubleshoot.
  • From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Option 2 – Try resetting TCP/IP

In case you didn’t notice, the Tcpip.sys file is associated with the TCP/IP protocols in your computer system which is why resetting TCP/IP can help in resolving the Tcpip.sys Blue Screen of Death error especially when the TCP/IP has been modified.
  • First, you need to type “command prompt” in the Windows Search bar and then right-click on the related search result and select the “Run as administrator” option to open Command Prompt.
  • After that, type the following command in the elevated cmd window and hit Enter:
netsh int ip reset
  • Now reboot your computer after the command has been executed and check if it helped to fix the Blue Screen error.

Option 3 – Try to rollback your Network driver

If you have updated the driver software as of late and you suddenly got this BSOD error, you might have to roll back the device driver – in other words, switch back to the previous working version. To do that, follow these steps:
  • Tap the Win + R keys to launch the Run window and then type in the “devmgmt.msc” command and hit Enter to open the Device Manager window.
  • Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand it.
  • Next, select the driver entries that are labeled appropriately other than anything in the context of the WAN Miniport.
  • Then select each one of them and double click to open a new mini window.
  • After that, make sure that you’re on the Driver tab and if you are not, just navigate to it then click the Roll Back Driver button to switch back to the previous version of your Network adapters.
  • Now restart your computer to successfully apply the changes made.

Option 4 – Try to update the Network drivers

You might also want to try updating all your network drivers in order to fix the Tcpip.sys Blue Screen error. To do so, here’s what you have to do:
  • Tap the Win + R keys to launch the Run window and then type in the “MSC” command and hit Enter to open the Device Manager window.
  • Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand it.
  • Then right-click on each one of the Network drivers and update them all.
  • Restart your PC and see if it helped in fixing the BSOD error.
Note: If updating the network drivers didn’t help in fixing the problem, you can also try to uninstall the very same drivers and restart your Windows 10 PC. After that, the system itself will reinstall the drivers you just uninstalled. Alternatively, you can also download and install the drivers from the manufacturer’s website directly.

Option 5 – Try to disable both the Antivirus program and Firewall temporarily

There are times when antivirus programs and the firewall blocks a website that they consider to be malicious or even because of false-positive effects which is why you have to disable these programs temporarily as it might be the reason why you’ve encountered the error when trying to browse the internet.
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A Patch for Windows Code 44 Error

Error Code 44 – What is it?

Error Code 44 is a device driver error that users encounter when using Windows 2000 operating system and later versions.

It is when the peripheral device that is connected to the computer, such as a printer or a fax machine, cannot be accessed as the programs required for operation interfere with other software on the computer. The error code will pop up with the following message:

“An application or service has shut down this hardware device. (Code 44)”

Solution

driverfix boxError Causes

Error Code 44 is caused when the program that you are using shuts down the peripheral device installed on your system. It is triggered by the following:
  • Corrupted system registry entries
  • Device driver files are outdated
  • Device driver files are missing
It is critical to fix the Error Code 44 as it can pose serious risks to the wellbeing of your PC.

Further Information and Manual Repair

While bothersome, like other error codes, error code 44 to is relatively easy to fix. Here are ways to help resolve the error.

Method 1 – Restart your PC

The easiest method you can use to solve your PC error code is to simply run a restart of your Windows system. It may be that the error prompted upon connecting the device you have connected is merely a temporary problem, and upon restart, will resume functioning smoothly.

Method 2 – Run the Troubleshooting Wizard

If restarting your PC does not help, you will have to find the exact nature of the problem by running the troubleshooting wizard for the device and address the problem accordingly. To do this, proceed with the following steps:

  • Run Device Manager on your PC
  • Click on the program under the installed programs that are creating problems for you
  • Click on the ‘General’ Tab
  • Click ‘Troubleshoot’
  • Upon opening, the Troubleshooting Wizard will ask a series of questions regarding the error. Answer the questions and follow its directions for solving the error code.

After following the directions of the Troubleshooting wizard, make sure to restart your PC for the changes to take effect. Then check if your device is still causing problems.

Method 3 – Manually uninstall and reinstall the device driver

If troubleshooting does not work, you may have to resort to manually uninstalling and then reinstalling the device driver causing the problem.

This would be necessary since the remaining incomplete files due to a partial removal or installation of programs is what contributes to the error code. A fresh install, after uninstallation of the previous drivers, would lead to the completion of the files.

You can do this by firstly logging in as Administrator and opening Device Manager. Select the device that is causing the problem and double click it and make sure that the peripheral is connected properly to the PC.

Upon opening, click on the ‘Driver’ tab and then select ‘Update Driver’. Make sure to refer to the system documentation that you received with your PC or computer to check for the motherboard details and driver specifics.

Method 4 – Use software to automatically download the driver

Manually uninstalling and reinstalling the driver will do the trick, however, it may be time-consuming especially when you would have to resort to your hardware user manual.

Therefore, using a program such as DriverFIX can save you a lot of time and frustration in having your device work properly on your computer.

Driver Assist, with its user-friendly approach to help you fix your PC issues, comes with an integrated database that detects which drivers you need to reconfigure within just a few seconds and downloads it automatically.

It further ensures that your drivers are installed in their entirety leaving no room for any incomplete files to remain that create Error Code 38.

It also has the added advantage of being able to backup and restores your files should there be the slightest possibility of system file damage. DriverFIX is the answer to fixing your PC error codes accurately and quickly.

Click here to download DriverFIX to fix Error Code 44 quickly and effectively!

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Disabling File Grouping in Explorer in Windows
Browsing your files on a computer seamlessly is made possible by the File Explorer in Windows 10 as it provides users with a great sense of customization for both listing and performing operations on a file. You have the option to arrange the folders and files being browsed by their name, type, date, size, and so on. Moreover, files that share a common attribute can be also be grouped accordingly using the grouping feature. However, there are times when instead of helping, it causes some problems for some users. This is why in this post, you will be guided on how you can disable the File Grouping feature in the File Explorer in Windows 10. There are two methods you need to consider in disabling the File Grouping feature in Windows 10. First, you can disable it for only one folder or you can disable it for all the folders on your computer. For more details, follow the instructions given below.

Option 1 – Disable File Grouping in only one folder

This first option is relatively straightforward and simple which will work if you only want to disable File Grouping in one folder.
  • First, open File Explorer, and go to the folder you want to disable File Grouping.
  • Next, right-click anywhere on that folder.
  • And then select Group by > None. This will disable File Grouping for only that particular folder.

Option 2 – Disable File Grouping in all the folders

If you wish to disable File Grouping in all the folders on your computer, then you need to follow this option. If you have already tried the first one, then continue with the given steps below.
  • Tap the Alt + V key combination.
  • Then tap the Alt + Y keys and then tap Alt + O keys.
  • After that, navigate to the View tab, and under the Folder views section, select Apply to Folders.
  • Now click on the Apply and OK buttons to save the changes made. This will disable File Grouping in all the folders listed in the File Explorer.
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Shutdown your PC properly

So, you have finished with work, game, movie, music, email, or whatever on your PC, you look at the clock, it is late, you decide to go to sleep or outside, you click on the power button and choose shutdown. Now when a PC is shut down you feel good and go with your business but the next time you power it up you get the same error like the computer never really shut down in the first place. You wonder why and reboot it, just in case and all of the sudden error is gone.

If something similar has happened to you or you had the feeling that after shutting down your computer has not really felt like shutting it down, do not seek professional help, everything is OK with you because when you click on shut down, your computer does not really shut down!

Truth is that Microsoft has changed how to shut down works and how rebooting works in Windows with an update but has not publicly said anything about it so some users may experience this feeling of not shutdown phenomenon and might even think there is something wrong with their PC.

Why this change?

A few years ago shutdown button and option in Windows were really shutting down OS, but things changed when Microsoft wanted to increase boot-up speed. Now when that decision was made shutdown option was changed. So, what was changed? Well in order to increase Windows booting time, the shutdown will now turn off power to PC components and it will look like everything is indeed shutdown but the Windows kernel will actually be saved to a hard drive with all settings and just awaken once the PC is turned back ON. This will result in all errors and other stuff being just still present same as they were once the system was instructed to be turned off.

Rebooting your PC will now clear kernel and file from the hard drive and you will get a clean system startup without any issues tied with the kernel itself.

Workaround

Now that we know why and what change has been made to Windows logical question is can we shut down our PC at all properly? Luckily for us, the answer is yes and we will not need any external application to do it, we can still do it inside Windows itself and it is quite quick and easy.

Bringing back the old shutdown

In order to bring the old shutdown functionality of your PC please follow the instructions but be aware that by doing this your PC will boot a little bit slower since it will have to load the kernel from scratch each time computer is turned ON.

First thing is to go to settings and go to System

system settings

Then once you are inside the system, navigate to the power and sleep and click on it to select it. Once you have it selected to all the way to the right and click on additional power settings.

power and sleep options

When you click on advanced power settings you should be led to the control panel's power options. Inside this panel click on top left link where it says Choose what the power button does.

power options in control panel

Inside options, you will need to untick the box next to Turn on fast startup (recommended), this option has been ticked ON by the Windows update and probably without notifying you. Option means exactly what was described, it will save kernel state on the hard drive for faster boot time but sadly it can cause some issues since it will never be reloaded from 0.

If you are unable to uncheck the box click on the text beside the shield icon that says: Change settings that are currently unavailable (you will have to be logged in as administrator).

shutdown options for power buttons

Conclusion

Altho turning off fast startup and shutting down the PC completely will for sure extend your bootup time I still believe that it is the right choice since sometimes a lot of clutter and bad things accumulate over time inside the OS and can cause a vast variety of problems in a long run. So stay safe and shut down that PC as it used to be in the past.

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Guide How to Remove PCOptimizerPro

PC Optimizer Pro is a PC optimizer utility developed by Xportsoft Technologies. It is classified as a potentially unwanted program, due to its aggressive scan and registration reminders, and that it is often distributed bundled with other programs in a manner that leads many users to not know how it got on their computer. While not inherently malicious, PC Optimizer Pro adds numerous registry keys, startup entries and while running consumes a relatively high amount of system resources, especially during its scans. The software installs from a .exe file that is around 5.20 MB or 5.453.240 Bytes (depending on the version). As of the publication of these videos, the current version of PC Optimizer Pro was detected as malicious or potentially unwanted by at least 21 AntiViruses.

About Potentially Unwanted Applications

If you have ever installed freeware or shareware, chances are high that your computer can get installed with a bunch of unwanted applications. A Potentially Unwanted Program, also called PUP, in short, is actually software that contains adware, installs toolbars, or has other hidden goals. These kinds of programs are almost always bundled up with free software which you download from the net or are also bundled within the custom installers on many download sites. PUPs did not really constitute pure “malware” in the strict sense of the term. Just like malicious software, PUPs cause problems when downloaded and installed on your PC, but what makes a PUP different is that you give consent to download it – although the truth is vastly different – the software installation package actually tricks you into accepting the installation. Irrespective of whether it is regarded as malware or not, PUPs are nearly always harmful to the user as they might bring on adware, spyware, keystroke logging, and also other bad crapware features on your computer.

What do PUPs do on your computer, exactly?

Potentially Unwanted Programs come in many forms and varieties, but in most instances, these are adware programs that show annoying pop-up adverts and advertisements on websites you check out. The PUPs also get installed into your computer in the form of web browser add-ons and toolbars. Not only they needlessly take up space on your computer screen, but toolbars may also manipulate search engine results, watch your web browsing activities, decrease your web browser’s efficiency, and decelerate your internet connection to a crawl. Potentially Unwanted Programs at times act quite similarly to viruses or spyware. Some PUPs include keyloggers, dialers, along with other software to gather your private details that may result in identity theft. These are programs that don’t do anything good for you; in addition to taking over space on your hard drive, they also slow down your computer, often modify settings without your approval, the list of bothersome features goes on.

Ways to avoid PUPs

• Always study the EULA and privacy statement. Don’t agree until you know precisely what you are acknowledging. • Choose the “custom” install whenever installing a software program. In particular, look closely at those small boxes that have been checked as default, where you may ‘agree’ to receive promotions or install software bundlers. • Use good antivirus software, like Safebytes Anti-Malware that offers real-time protection against PUPs. • Avoid adding a freeware program you do not use. Turn off or remove toolbars and web browser extensions you don’t really need. • Always download software from reliable sources like official sites as opposed to untrustworthy sharing space. Avoid file-hosting sites where/when possible.

What you can do if Malware Prevents You From Downloading Or Installing Antivirus?

Practically all malware is bad, but certain types of malware do much more damage to your computer than others. Certain malware goes to great lengths to stop you from downloading or installing anything on your personal computer, particularly antivirus applications. If you are reading this right now, you have probably recognized that a malware infection is the real cause of your blocked web connectivity. So what to do if you need to install an antivirus program like Safebytes? There are a few steps you can take to circumvent this problem.

Install in Safe Mode

The Windows OS has a special mode known as “Safe Mode” in which just the bare minimum required programs and services are loaded. In the event the malware is blocking the internet connection and affecting the computer, running it in Safe Mode will let you download antivirus and run a diagnostic scan while limiting possible damage. To start the computer into Safe Mode, press the “F8” key on your keyboard right before the Windows boot screen comes up; Or right after normal Windows boot up, run MSConfig, look over “Safe Boot” under Boot tab, and click Apply. After you reboot into Safe Mode with Networking, you can download, install, and update anti-malware software from there. Right after installation, run the malware scanner to remove standard infections.

Switch to an alternate browser

Some malware may target vulnerabilities of a specific browser that block the downloading process. If you seem to have malware attached to Internet Explorer, then switch over to an alternate web browser with built-in safety features, such as Firefox or Chrome, to download your favorite antivirus program – Safebytes.

Install and run anti-virus from the USB drive

Another solution is to create a portable anti-malware program on your USB stick. Adopt these measures to employ a thumb drive to clean your infected computer system. 1) Download Safebytes Anti-Malware or MS Windows Defender Offline onto a clean PC. 2) Plug the Thumb drive into the clean computer. 3) Run the setup program by double-clicking the executable file of the downloaded software, with a .exe file format. 4) Choose the flash drive as the location for saving the file. Do as instructed on the screen to complete the installation process. 5) Now, plug the pen drive into the corrupted computer. 6) Double-click the anti-malware software EXE file on the USB flash drive. 7) Press the “Scan” button to run a full system scan and remove viruses automatically.

SafeBytes Anti-Malware: Lightweight Malware Protection for Windows PC

These days, an anti-malware tool can protect your computer from different types of online threats. But how to choose the best one amongst numerous malware protection application that’s available out there? You may be aware, there are numerous anti-malware companies and tools for you to consider. A few are well worth your money, but many aren’t. You have to be very careful not to choose the wrong application, especially if you buy a paid application. In terms of commercial anti-malware application options, many people select well-known brands, such as SafeBytes, and are quite happy with it. SafeBytes anti-malware is a powerful, highly effective protection tool created to help end-users of all levels of IT literacy in detecting and eliminating malicious threats from their computer. Using its cutting-edge technology, this software can assist you to eliminate several types of malware such as computer viruses, trojans, PUPs, worms, ransomware, adware, and browser hijackers. SafeBytes has excellent features when compared to other anti-malware programs. Let’s have a look at a few of them below: Robust, Anti-malware Protection: Safebytes is made on the best virus engine within the industry. These engines will find and get rid of threats even during the initial phases of a malware outbreak. Active Protection: Malware programs aiming to enter the system are discovered and stopped as and when detected by the SafeBytes active protection shields. It’ll check your PC for suspicious activity at all times and safeguards your personal computer from unauthorized access. High-Speed Malware Scanning Engine: SafeBytes’s high-speed malware scanning engine minimizes scan times and extends the life of the battery. Simultaneously, it will effectively detect and eliminate infected computer files or any online threat. Website Filtering: SafeBytes checks the hyperlinks present on a webpage for possible threats and informs you whether the site is safe to explore or not, through its unique safety rating system. Lowest CPU/Memory Usage: SafeBytes is a lightweight and user-friendly antivirus and antimalware solution. Since it utilizes negligible computer resources, this tool leaves the computer’s power exactly where it belongs to: with you. Premium Support: You may get high levels of support round the clock if you’re using their paid software.

Technical Details and Manual Removal (Advanced Users)

If you wish to manually remove PCOptimizerPro without the use of an automated tool, it may be possible to do so by removing the program from the Windows Add/Remove Programs menu, or in cases of browser extensions, going to the browsers AddOn/Extension manager and removing it. You will likely also want to reset your browser. To ensure the complete removal, manually check your hard drive and registry for all of the following and remove or reset the values accordingly. Please note that this is for advanced users only and may be difficult, with incorrect file removal causing additional PC errors. In addition, some malware is capable of replicating or preventing deletion. Doing this in Safe Mode is advised.

The following files, folders, and registry entries are created or modified by PCOptimizerPro

Files: DesktopPC Optimizer Pro.lnk. %Programs%PC Optimizer ProLive Support.url. %Programs%PC Optimizer ProPC Optimizer Pro.lnk. %Programs%PC Optimizer ProUninstallation Guide.url. %Programs%PC Optimizer ProVisit Website.url. %ProgramFiles%PC Optimizer ProPCOptimizerPro.exe. %ProgramFiles%PC Optimizer ProPCOptProCtxMenu.dll. %ProgramFiles%PC Optimizer ProPCOptProTrays.exe. %ProgramFiles%PC Optimizer ProStartApps.exe. %ProgramFiles%PC Optimizer Prouninst.exe. %QuickLaunch%PC Optimizer Pro.lnk. WindowsTasksPC Optimizer Pro Idle.job. WindowsTasksPC Optimizer Pro Scan.job. WindowsTasksPC Optimizer Pro startups.job. WindowsTasksPC Optimizer Pro Updates.job. C:DOCUME1USER1LOCALS1Tempoptprosetup.exe C:WINDOWSsystem32netmsg.dll C:DOCUME1USER1LOCALS1Tempoptprosetup.exe C:DOCUME1USER1LOCALS1Tempis-SJGJ9.tmpoptprosetup.tmp C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmp_isetup_shfoldr.dll C:WINDOWSsystem32shfolder.dll C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmpOptProHelper.dll C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmpitdownload.dll C:1e4e2d65e12311cac2c0eeb8c5c1d7bd1ddc865b367b98b56bc2330bf18436 C:WINDOWSRegistrationR000000000007.clb C:DOCUME1USER1LOCALS1Tempoptprosetup.exe C:WINDOWSsystem32shfolder.dll C:1e4e2d65e12311cac2c0eeb8c5c1d7bd1ddc865b367b98b56bc2330bf18436 C:WINDOWSRegistrationR000000000007.clb C:WINDOWSsystem32shell32.dll C:DOCUME1USER1LOCALS1Tempis-SJGJ9.tmpoptprosetup.tmp C:Program FilesOptimizer Pro 3.99OptimizerPro.exe C:Program FilesOptimizer Pro 3.99unins000.exe C:Program FilesOptimizer Pro 3.99OptProStart.exe c:autoexec.bat C:DOCUME1USER1LOCALS1Tempoptprosetup.exe C:DOCUME1USER1LOCALS1Tempis-SJGJ9.tmpoptprosetup.tmp C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmp_isetup_shfoldr.dll C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmpOptProHelper.dll C:DOCUME1USER1LOCALS1Tempis-NTRVH.tmpitdownload.dll C:Program FilesOptimizer Pro 3.99is-BDCDJ.tmp C:Program FilesOptimizer Pro 3.99is-DB4S5.tmp C:Program FilesOptimizer Pro 3.99is-C16E7.tmp C:Program FilesOptimizer Pro 3.99is-QE691.tmp C:Program FilesOptimizer Pro 3.99is-GQ78C.tmp Registry: Key 003B9C22-6FE0-4BCA-A73F-9AA99B9BBDAA at HKEY_CLASSES_ROOTTypeLib. Key 12AB121E-44C6-488B-8773-B0AE25E662E1 at HKEY_CLASSES_ROOTInterface. Key 203ABD21-41F1-4F1B-BAE3-D6A89A90D239 at HKEY_CLASSES_ROOTCLSID. Key PC Optimizer Pro at HKEY_CURRENT_USERSoftware. Key PC Optimizer Pro at HKEY_LOCAL_MACHINESOFTWARE. Key PC Optimizer Pro at HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionUninstall. Key PCOptimizerPro.exe at HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionApp Paths. Key PCProCtxMenu at HKEY_CLASSES_ROOT*shellexContextMenuHandlers. Key PCProCtxMenu at HKEY_CLASSES_ROOTlnkfileshellexContextMenuHandlers.
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Attempt was made to reference a token
If you were trying to open File Explorer but it suddenly stopped working and you encounter an error message that states, “An attempt was made to reference a token that does not exist”, read on as this post will guide you in fixing this problem. This problem was initially reported after the April Update and Microsoft was able to fix it right after correcting the build. However, this effort seems futile for some users as recently, some reported getting the same error when they try to open not just Windows File Explorer but also with utilities like Microsoft Management Console or MMC, Visual Studio, Task Manager, Printer, Recycle Bin, etc. Two of the most likely causes of this error are a troublesome Windows Update and corrupted system files. Whatever the cause is, here are some suggestions you can follow to fix the “An attempt was made to reference a token that does not exist” error.

Option 1 – Try to re-register the problematic DLL file

You may have to re-register the ntdll.dll file using the regsvr32.exe before you can successfully install the program and fix the ntdll.dll file crash error. The Regsvr32 tool is a command-line utility that can be used to register and unregister OLE controls like DLL and ActiveX (OCX) control in the Windows operating system. Follow the steps below to use it.
  • Open Command Prompt as admin from the WinX menu.
  • Next, type the following commands in the elevated Command Prompt and hit Enter to execute the command. This will re-register the affected DLL file using the Windows operating system tool, regsvr32.exe.
    • exe /[DLL file]
    • exe [DLL file]
Note: Replace “[DLL file]” with the name of the DLL file that was pointed out in the error.
  • After you execute the given commands, you should see a message saying, “DllRegisterServer in vbscript.dll succeeded” if the Regsvr32 tool was able to run successfully. After that, try to install the program again and see if it now works.

Option 2 – Replace the DLL file from a trusted source

  • First, you need to get the new DLL file from another computer with preferably the same file version number.
  • After that, you need to boot your PC into Safe Mode and navigate to the paths listed below and then replace the file using a USB drive or other external storage devices.
    • x86: This PC > C:/Windows/System32
    • x64: This PC > C:/Windows/SysWOW64
  • Next, type “cmd” in the Cortana search box and right-click on Command Prompt, and select “Run as administrator” to open it with administrator privileges.
  • Now type the “regsvr32 ntdll.dll” command and hit Enter.
  • Restart your PC and check if the error is now fixed.

Option 3 – Perform a System File Checker scan

The System File Checker or SFC scan could detect and automatically repair damaged system files that could be causing the “An attempt was made to reference a token that does not exist” error to pop up. SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.
  • Tap Win + R to launch Run.
  • Type in cmd in the field and tap Enter.
  • After opening Command Prompt, type in sfc /scannow and hit Enter.
The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:
  1. Windows Resource Protection did not find any integrity violations.
  2. Windows Resource Protection found corrupt files and successfully repaired them.
  3. Windows Resource Protection found corrupt files but was unable to fix some of them.

Option 4 – Try reverting back to the previous build of Windows

This kind of error might have something to do with a Feature Update so you can try to revert your computer to a previous build of Windows 10 as it could help you fix the problem. In this case, it would better if you refrain from updating your Windows 10 computer until this problem is completely resolved by Microsoft.
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