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How to Fix Error 0x00000643

Error 0x00000643 - What is it?

This is a Windows Vista printer error. It occurs when you try to use the plug-and-play service to install a WSD printer on your PC.

WSD is the abbreviation for Web Services for Devices.

It is a Microsoft API to simply programming connections to web service enabled devices such as printers, file shares and scanners.  The error 0x00000643 code is displayed in the following format:

“Operation could not be completed (error 0x00000643)”

Solution

Restoro box imageError Causes

The error 0x00000643 may occur due to multiple reasons, including:

  • No suitable driver installed for your printer
  • A firewall or other security program is too restrictive
  • Registry file has invalid entries
  • Virus and Trojan
  • Outdated system drivers

Further Information and Manual Repair

To resolve this error code on your PC, you don’t have to hire a professional technician and spend hundreds of dollars to perform system repair. You can resolve it all by yourself, even if you are not a computer programmer or lack technical expertise.

Here are some of the easiest and proven methods to fix the error 0x00000643 on your PC:

1. Update Outdated Drivers

This can be done by accessing the ‘Device Manager’. All you have to do is, go to the start menu and type Device Manager in the start search box. Then click on the Device Manager in the list. On the action menu, click the scan for hardware changes or update the driver.

2. Delete the WSD Port to Resolve Error

Go to the start menu and type printers in the search box. Click printers in the given program list and then click the option add a new printer.

After that, select the existing WSD port and any printer driver. Now delete the printer. The WSD will be deleted automatically. Once this is done, connect the printer to your computer. You will see the plug-and-play service will begin to install the printer again. This process is most likely to resolve the issue and reinstall your printer.

3. Disable Firewall

Sometimes the error may occur if the security programs are too restrictive such as the Firewall. To fix the problem simply disable Firewall.

4. Viral Infection

If the underlying cause of the error is a viral infection, then download a powerful antivirus and run it on your PC. Scan for viruses and delete them.

5. Registry Invalid Entries

If you don’t clean the registry regularly, this overloads with unnecessary, redundant and obsolete files like cookies, internet history, junk files, bad registry keys and invalid entries. This damages the registry and generates such error codes. Although you can resolve and repair the registry manually, but that method is slight tricky and time consuming. It may require technical expertise.

However, another quick and easy way to clean and restore the registry and resolve error 0x00000643 on your system is to download Restoro. This is a next-generation, advanced, and highly functional PC Repair Tool. It is deployed with an intuitive algorithm and multiple utilities such as a smart registry cleaner, a powerful antivirus, and a system optimizer.

The registry cleaning utility detects all registry issues on your PC, removes invalid entries cluttering the registry, and repairs it right away thereby resolving error 0x00000643.

The antivirus simultaneously detects malware on your PC and removes them while the system optimizer boosts the speed of your computer significantly.

Restoro is bug-free, safe, and efficient. It has simple navigations and a user-friendly interface. This software is compatible with all Windows versions including Vista.

To fix error 0x00000643 on your system in seconds, click here to download Restoro now!

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powershell -windowstyle hidden -command "Start-Process cmd -ArgumentList '/s,/c,net stop "icssvc" & REG ADD "HKLMSYSTEMCurrentControlSetServicesicssvcSettings" /V PeerlessTimeoutEnabled /T REG_DWORD /D 0 /F & net start "icssvc"' -Verb runAs"
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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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Option 2 – Disable problematic Internet Explorer add-ons

There are instances when some add-ons in the Internet Explorer browser can cause the ntdll.dll file crash error. Thus, you need to disable some add-ons in Internet Explorer and then check if it fixes the problem.

Option 3 – Try running the DISM tool

You might want to repair potentially corrupted files in your system as having them could also trigger the ntdll.dll file crash error. To repair these corrupted system files, you can run the DISM commands:
  • Tap the Win + X keys and click on the “Command Prompt (Admin)” option.
  • After that, input each one of the commands listed below sequentially to execute them:
    • Dism /Online /Cleanup-Image /CheckHealth
    • Dism /Online /Cleanup-Image /ScanHealth
    • Dism /Online /Cleanup-Image /RestoreHealth
  • Once you’ve executed the commands given above, restart your computer and check if the DCOM error is now fixed.

Option 4 – Try to run the Program Compatibility Troubleshooter

You might also want to run the Program Compatibility Troubleshooter. This built-in troubleshooter is available in the Windows Update & Security section. From there, select Troubleshoot. This will find a list of programs for you and since you have already downloaded the driver files, just click on Not Listed located at the top of the program list. After that, browse and select the driver files and then let the program do its job.

Option 5 – Try to replace the DLL file with 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:WindowsSystem32
    • x64: This PC > C:WindowsSysWOW64
  • 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 6 – Try scanning your computer using Windows Defender

The ntdll.dll file crash error might also be infected with malware or virus and to eliminate it, you have to scan your computer using security programs like Windows Defender.
  • 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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One of the important processes in the Windows operating system is the Setting Synchronization or SettingSyncHost.exe. This process is the one responsible for synchronizing the settings of your computer with other devices. It is the one that replicates settings like OneDrive, Internet Explorer, wallpapers, and so on, to other systems. However, it has been known to cause high CPU usage in Windows 10 and there are times when it causes the system to freeze or system lags. So if you notice that the SettingSyncHost.exe process is causing high CPU usage in your computer, worry not for this post will guide you in fixing them. You have to be cautious when you notice high CPU usages caused by system processes since cybercriminals mostly set the names of viruses in a way that the system or the user won’t be able to identify them. Cyber crooks could name the virus and malware the same as one of the system processes like SettingSyncHost.exe to make it seem like it’s a legitimate process. Thus, you need to keep in mind that original system processes like the SettingSyncHost.exe file are located in the System32 folder. The original SettingSyncHost.exe file is located in the System32 folder. To check for the same, right-click on the troublesome process in the Task Manager and select Open file location. If the place is any other than the System32 folder, run a full system anti-virus scan on the system. The SettingSyncHost.exe causes high CPU usage when it gets stuck in the sync process and is not able to come out of the loop. To fix this problem, you need to follow the solutions offered below but before you proceed, make sure that you create a System Restore point first.

Option 1 – Apply some registry tweak

The first thing you can do is to apply some tweaks to the Windows Registry. To get started, follow these steps:
  • Tap the Win + R keys to open the Run utility and type “Regedit” in the field and then tap Enter to open the Registry Editor.
  • Next, navigate to this registry path: HKEY_CURRENT_USERSoftwareMicrosoftInputPersonalizationTrainedDataStore
  • From there, right-click on the key and select Permissions.
  • After that, check the box next to “Allow” for Full Permission for every user group.
  • Now click on the Apply and OK buttons to save the changes made.
  • Then restart your computer.

Option 2 – Close the Host process for setting synchronization

If the registry tweak didn’t work, you can try to close the host process for setting synchronization, especially if this process continues to hog resources. You can terminate this process by opening the Task Manager. From there, end the process or task of the host process. On the other hand, you can also turn off the Host process for synchronization by opening Settings > Accounts > Sync settings located in the left pane. After that, turn off the Sync setting.

Option 3 – Run the Hardware and Devices Troubleshooter or the Performance Troubleshooter

Hardware and Devices Troubleshooter:

  • The first thing you need to do is click on Start and then on the gear-like icon to pull up the window for Settings.
  • After opening Settings, look for the Update and Security option and select it.
  • From there, go to the Troubleshoot option located on the left-hand side of the list.
  • Next, select Hardware and Devices from the list and open the Troubleshooter and run it. Once it is doing its job, wait for it to complete the process and then restart the system.
  • After the system restarts, check if the problem’s now fixed. If not, refer to the next option given below.

Performance Troubleshooter:

  • Tap the Win + R keys to open the Run dialog box.
  • Type “exe /id PerformanceDiagnostic” in the field and hit Enter to open the Performance troubleshooter.
  • Then click on Next to get started. Wait until the process is completed.

Option 4 – Try scanning your computer using Windows Defender

As mentioned, it is possible that the SettingSyncHost.exe could be infected with a virus or malware. To eliminate it, you have to scan your computer using security programs like Windows Defender.
  • 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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Hardware review: Bytezone Advanced desk
If you spend a large amount of time gaming or working on a computer gaming chair is a very important asset. One other thing that is mostly looked past but could help greatly is a good desk. A great chair accompanied by a great desk can make your long sitting sessions more pleasant and more healthy which is very important in the long run. Hey, but it is only a desk, what is so special about having an expensive desk? Well truth to be told desk is just a desk and any kind of desk can serve the purpose of hosting a keyboard, mice, and screen. But a good desk will offer some other advantages that may not seem so important but they could mean a lot like adjusting desk height so it fits perfectly on your size and sitting position making long hours more pleasant and lower stress on hands sitting on it.

bytezone gaming deskAdvanced desk features

Bytezone might not be a company that will sound familiar to you, mostly because they manufacture gaming chairs and desks, now in the gaming chairs world there are a lot of competitors and Bytezone has managed to make a name for itself despite this fact. But they are more popular in their gaming and office modern-looking desk category. The advanced desk is made from carbon steel and plastic combination, it is very durable and it weighs 27kg. Now that is not really light but it is not very heavy if we compare it to wood desks. The top layer of the table is made from easy-to-clean material and the desk comes with a large mouse and keyboard pad. The table itself includes a cup holder, headphones bracket under the table and it has a cable management drawer in the back. The desk is sized 66x120x76 cm. Also for anyone interested desk itself comes also with RGB lights for that true gaming feel.
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Fix the HTTP Error 304 Not modified
When you get the “HTTP Error 304 Not modified” error in Google Chrome, Mozilla Firefox, or Microsoft Edge, there can be lots of reasons why you’re getting this error. The HTTP Error code 304 means redirection, technically. It could be that the DNS has some issues or the cache is already reusing the existing information to look for a website or it could also be that your browser might be infected. In this post, we will show you what you can do to fix the “HTTP Error 304 Not modified” error when you are not able to open a website on your browser. Here are the exact details of the error message:
“This status code is returned if the client has already downloaded resources since the last visit and is displayed to notify the client browser that the requested resources is already stored in the browser cache which hasn’t been modified.”
Follow each one of the given fixes below to resolve the issue.

Option 1 – Clear the browsing data on your browsers

The first thing you can try is clearing the browsing data on your browsers.

Microsoft Edge:

  • Open Microsoft Edge.
  • Then click on the three horizontal dots to open the menu.
  • From there, click on Settings. And under Settings, click the “Choose what to clear” button under the Clear browsing data section.
  • Next, check all the checkboxes and then click the Clear button to clear the browsing data in the Edge browser.
  • Restart Edge.

Google Chrome:

  • Open Chrome and then click on the three vertical dots located at the top of the window.
  • Then click on Settings.
  • After that, click on Advanced. And from the Privacy and Security section, click on the “Clear browsing data” option.
  • Now click on the CLEAR DATA button.
  • Restart Chrome.

Mozilla Firefox:

  • Open Firefox and then click on the three horizontal lines to open the menu.
  • From there, click on Options.
  • Next, select Privacy & Security.
  • After that, click on the Clear Now button under the Cached Web Content section and then click the Clear All Data button under the Site Data section.
  • Restart Firefox.

Option 2 – Flush DNS and reset the TCP/IP

There are some websites that don’t resolve since the DNS in your computer still remembers that old IP address. And so you need to flush the DNS as well as reset the TCP/IP on your computer.
  • Click the Start button and type in “command prompt” in the field.
  • From the search results that appear, right-click on Command Prompt and select the “Run as administrator” option.
  • After opening Command Prompt, you have to type each one of the commands listed below. Just make sure that after you type each command, you hit Enter
    • ipconfig /release
    • ipconfig /all
    • ipconfig /flushdns
    • ipconfig /renew
    • netsh int ip set dns
After you key in the commands listed above, the DNS cache will be flushed and the TCP/IP will reset.

Option 3 – Try using the Google Public DNS

Changing your DNS to Google Public DNS might also help you in fixing the “HTTP Error 304 Not modified” error. To do so, follow the steps below.
  • The first thing you have to do is right-click on the network icon in the Taskbar and select Network and Sharing Center.
  • Next, click on the “Change Adapter Settings” option.
  • After that, search for the network connection that you are using to connect to the internet. Note that the option might be “Wireless Connection” or “Local Area Connection”.
  • Right-click on your network connection and click on Properties.
  • Then select the new window to choose the “Internet Protocol 4 (TCP/IPv4)” option.
  • After that, click on the Properties button and click the checkbox in the new window for the option “Use the following DNS server addresses”.
  • Type in “8.8.8.8” and “8.8.4.4” and click OK and exit.

Option 4 – Run Cleanup Tool and disable Extensions

You might also want to run the Cleanup Tool in Chrome if you are using this browser as well as disable all the extensions as some of them, if not all, might be the reason why you’re getting the “HTTP Error 304 Not modified” error.
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Windows 10 is stuck on Checking for updates
Over the years, the Windows 10 updates have smoothened but that does not mean that it no longer encounter some issues. One of these issues is when it gets stuck. As you know, Windows automatically checking for updates regularly or when you click the “Check for updates” button. However, if the Windows 10 update is taking forever and seems to be stuck, then you’ve come to the right place as this post will guide you on what you can do to resolve the problem. This kind of scenario in Windows Updates can be quite confusing especially since there is no response or any indication of what is really happening since you don’t know if the update is still downloading or if it’s already getting installed. To resolve this problem, there are several options you can check out. You can try to exit settings and restart your computer. You could also try to restart the services related to Windows Update or clear both the Software Distribution and Catroot2 folders, as well as run a System File Checker scan. For more details follow each one of the given steps below.

Option 1 – Restart your computer

The most basic thing you can do to fix the problem is to restart your computer. It usually works in fixing common issues like the Windows Update getting stuck at the “Checking for updates” screen. However, if it didn’t work, proceed to the next given options below.

Option 2 – Reset Windows Update components

If the first two options did not work then you might want to reset the Windows Update components manually. Follow the steps below to reset them.
  • Open Command Prompt with admin privileges.
  • After that, type each one of the following commands and hit Enter after you key in one after the other.
    • net stop wuauserv
    • net stop cryptsvc
    • net stop bits
    • net stop msiserver
Note: The commands you entered will stop the Windows Update components such as Windows Update service, Cryptographic services, BITS, and MSI Installer.
  • After disabling WU components, you need to rename both the SoftwareDistribution and Catroot2 folders. To do that, type each one of the following commands below, and don’t forget to hit Enter after you type one command after the other.
    • ren C:WindowsSoftwareDistribution SoftwareDistribution.old
    • ren C:WindowsSystem32catroot2 Catroot2.old
  • Next, restart the services you’ve stopped by entering another series of commands. Don’t forget to hit Enter after you key in one command after the other.
    • net start wuauserv
    • net start cryptsvc
    • net start bits
    • net start msiserver
  • Close Command Prompt and reboot your PC.

Option 3 – Try checking Services Dependencies

Dependencies of a Windows Service in Windows 10 are when windows services depend on other services. Such is the case with the Windows Update service – it also depends on three different services such as the Remote Procedure Call or RPC service, DCOM Server Process Launcher, and the RPC Endpoint Mapper. Meaning to say, if two of these services are not working as expected, then the dependent service will also be affected. This could be the reason why the Windows Update service could not start.
  • Tap the Win + R keys to open the Run dialog box.
  • Next, type “services.msc” in the field and hit Enter to open Windows Services.
  • From the list of Services, look for the following services:
    • Remote Procedure Call (RPC) Service
    • DCOM Server Process Launcher
    • RPC Endpoint Mapper
  • After you find these services, double click on each one of them and check whether the Startup type for all is set to Automatic and the Service status is set to Running or not.
  • If the service status is not running, then click the Start button. Afterward, check if you can now run the Windows Update service.

Option 4 – Check the Background Intelligent Service and the Cryptographic Service

  • Tap the Win + R keys to open the Run dialog box.
  • Next, type “services.msc” in the field and hit Enter or click OK to open Services.
  • From the list of Services, look for the following services and make sure that their Startup type is as follows:
    • Background Intelligent Transfer Service – Manual
    • Cryptographic Service ­– Automatic
  • After that, check if the Service status of the listed services above is set to Running. If they’re not, click on the Start button to start these services and then check if you can now enable the Windows Update service or not.

Option 5 – Try running the System File Checker

System File Checker or 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 to good system files that might be the cause why your screen is stuck at “Checking for updates”. 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
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.
  • Restart your computer.
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