What to do if CPU is not running at full speed

Stop C00002lA Fatal System Error- What is it?

C00002lA Fatal System Error is a blue screen of death error that may occur when you start your Windows NT 4.0 based computer. This error causes the screen to turn blue and the system also shuts down. The stop C000021A error message is displayed in the following format:

Stop c000021a {Fatal System Error} The session manager initialization system process terminated unexpectedly with a status of 0xc0000017 (0x00000000, 0x0000000) The system has been shut down.

Error Causes

The stop C000021A error occurs when either Crsrss.exe or Winlogon.exe fails. When the Windows NT kernel identifies that either of these processes has failed, it stops and the error code stop C000021A appears on the computer screen. Here are some of the underlying causes for the stop C0000021A error:

• The incompatible third-party program
• Hard disk issues
• Service pack installation has failed
• Mismatched system files have been installed
• Bad and invalid registry keys

Further Information and Manual Repair

To resolve the stop C000021A Fatal System Error on your PC try the following solutions:

• Remove Incompatible Third Party Programs

If the error occurred after you recently installed a new program, then it is advisable to remove that program. The error occurs due to the incompatibility of the program. To remove the program go to the start menu and click on the control panel. Now click on Add/Remove Program tab and double click on the program name that you recently installed and remove it from the list. Once removed, not reboot your PC. Reinstall a compatible program and run it. It is most likely to resolve the issue. However, if the stop C000021A error still occurs, then it means the problem is critical. It is related to the registry.

• Repair and Restore the Registry

This procedure is slightly long and tricky. To try it, you need to be technically sound. Here’s what you have to do: first create a parallel installation of Windows NT. Start your PC to the parallel installation and then open the Registry Editor. On the Registry Editor’s Windows menu click HKEY_LOCAL_MACHINE on Local Machine and then click Load Hive. Now type the path %systemroot%system32configsystem into the System hive of the prior installation. Then click open. Here you will be prompted to enter the name of the key, type TEST. Note the setting for the current DWord value in the preceding registry key. This is 0x1 and is denoted by CURRENT:Reg_Dword: 0x1. This value indicated that the Current Control Set for your original Windows NT installation corresponds to ControlSet001 in this window. Now if the value is 2, it indicated that the Current Control Set corresponds to ControlSet002. Now locate the following registry key: HKEY_LOCAL_MACHINETESTControlSetXXXControlSession Manager. XXX is the Current Control Set Value. And delete any pending file rename operation entries. Then click TEST hive and then click Unload Hive. After that again repeat the process, open the registry menu and click load hive, here type the path %systemroot%system32configSoftware to the Software hive of the prior installation and then click open. Now you type TEST 2 when you are prompted for the name of the key. Remove any pending file rename operations entries in the following registry keys: HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnce HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnceEx Now click TEST2 hive and then click unload hive. Quit the Registry Editor and then restart your original installation. This will resolve the stop C000021A error.

There are a lot of home users that often get a computer that comes installed with the Windows 10 Home. And since Windows 10 Pro offers more features and utilities compared to Windows 10 Home, a lot of users also prefer to upgrade their Windows 10 Home computers to Windows 10 Pro. However, while doing so, a number of users reported that they encountered error 0xc03f6506 and they were not able to proceed with the upgrade. If you are one of these users, when you encounter error 0xc03f6506, you will see the following error message on your screen:

“The last product key you entered can’t be used on this copy of Windows (0xc03f6506).”

This particular error tends to occur when you go on to activate Windows 10 although it can also appear during the upgrade process. In such cases, you will see the following error message:

“Unable to upgrade your edition, We can’t upgrade your edition of Windows. Try upgrading your edition of Windows again. (0xc03f6506).”

To fix the Activation Error Code 0xc03f6506 in Windows 10, use the options provided below as references but before you proceed, make sure that you create a System Restore point first.

Option 1 – Try to use the Registry Editor

If you have already upgraded from Windows 10 Home to Windows 10 Pro and you’re having trouble with its Activation, then you might want to apply some registry tweaks to fix the problem. How? Refer to these steps:

• Tap the Win + R key combination to open the Run dialog box.
• Then type “Regedit” in the field and click OK or tap Enter to open the Registry Editor.
• Next, navigate to this registry key: ComputerHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersion
• From there, look for a DWORD named “EditionID” and once you found it, double click on it and change its Value data to Windows 10 Professional.
• After that, look for another DWORD named “ProductName” and double click on it to change its Value data to Windows 10 Professional.
• Once you’re done, restart your computer to apply the changes made successfully.

Option 2 – Try to use Command Prompt

If the registry tweaks you applied didn’t fix the Activation error, then you can try using Command Prompt instead. Note that you can use this option in both scenarios pointed out above.

• First, you have to insert a bootable drive of the Windows10 installer.
• Next, tap the Win + X keys and select Command Prompt (Admin) from the menu.
• After opening Command Prompt as admin, navigate to the root location of the bootable drive inside the Command Prompt command line.
• Once you’re already there, type the following command and tap Enter:

setup.exe /auto upgrade /pkey <YOUR WINDOWS 10 PRO EDITION PRODUCT KEY>

After entering the command, check if it was able to fix the Windows Upgrade or Activation error 0xc03f6506. If not, refer to the next given option below.

Option 3 – Try to disable the Network Adapter

Just like the second option, you can also use this option for both the given scenarios above.

• Tap the Win + X keys and select Network Connections from the menu.
• This will open the settings for your network and on the left side panel, click on the “Change adapter settings” link. This will open Control Panel.
• From there, click on the network your computer is connected to, and then right-click on the Network Adapter that you are using and select Disable.
• After disabling the Network Adapter, try to switch to the edition of your copy of Windows 10 again and see if the problem is now fixed and don’t forget to double click on the disabled Network Adapter to get back on the Network.

As you know, you can find the number keys in two spots on your keyboard – one is above the letters while the second one is at the number pad. Recently, a number of users reported not being able to type any numbers on their keyboards while some reported that their keyboards only type numbers. This issue could occur on both sets of the number keys or on the one at the number pad. This is a rare situation and seldom happens to users. So if you are one of the few who experience the same problem then you’ve come to the right place as this post will guide you on what you can do to fix the keyboard issue. This issue is most likely due to a switched-off number pad, outdated or corrupted keyboard drivers, turned on mouse keys or it might have something to do with the physical connections. Whatever the cause is, here are some options you have to try to resolve the problem.

Option 1 – Try to enable Numlock

The first thing you can do to fix the issue with the keyboard is to enable the Numlock since one of the most common reasons for this kind of problem is where the keyboard won’t type numbers because the Numlock key is disabled. Thus, you have to enable this key by pressing it once to enable the number pad.

Option 2 – Turn off the Mouse key

• From the Start Menu, go to Control Panel.
• Navigate to Ease of Access Center.
• Then select the option “Make the keyboard easier to use”.
• Navigate to the option “Control the mouse with keyboard” and then uncheck the “Turn On Mouse Keys” option to turn off the Mouse key.
• Click on Apply and then on OK to save the changes made.

Note: The problem with the keyboard could stem down to a simple issue in its settings so if you have successfully followed the steps for this solution then you should be able to fix the problem.

Option 3 – Reinstall, update or rollback your keyboard driver

Once you’ve determined that the problem is in the software part of the keyboard, it is now time to try to reinstall, update or roll back your keyboard drivers. To reinstall the driver for your keyboard, refer to these steps:

• From the WinX Menu, open the Device Manager.
• In the Device Manager, you should find your laptop’s keyboard under the “Keyboards” option. Right-click on it and select the “Uninstall” option.

Note: If you’re not quite certain about your laptop’s keyboard, you can uninstall all the keyboards if there’s more than one.

• After that, restart your PC and see if the keyboard driver is installing automatically. If not, open the Device Manager again and right-click on Keyboards, and select the option “Scan for hardware changes” to install it.

Once the keyboard driver is installed again, check if your keyboard is now working properly or not.

Option 4 – Try connecting the keyboard to a different USB port or another computer

The problem might have something to do with the USB port that’s currently in use by your keyboard. It could be that it’s not working so it makes sense to unplug it and attach it to another USB port. You can also clean the USB port on both ends to ensure that they are not affected by corrosion. In addition, you can also try connecting the keyboard to a different computer and see if the Shift key works there or not.

Option 5 – Try to check your connections

You can also try checking if the connection mode you are using for your keyboard is functioning properly. For instance, if you are using a Surface 2-in-device, you can clean the connection pins and see if it resolves the problem.

Option 6 – Run the Hardware and Devices Troubleshooters

• 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 Keyboard 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.

If you are a gamer, you might have encountered either the CID HANDLE CREATION or VIDEO TDR ERROR errors with an error code of 0x00000016 as you play a game. These kinds of Stop errors have something to do with the Graphics card driver. It could be that your Graphics card driver needs to be updated or it may be corrupted. Whichever the case is, you can try fixing this error using the given solutions below but before you proceed, make sure to create a System Restore Point first so that you can easily roll back to the previous state of your computer in case something does not go as expected.

Option 1 – Try checking if your graphics card is enabled and update it as well

Although the problem is quite massive, the fix could be as simple as enabling the graphics card if it turns out to be disabled. There might be some strange reason why your graphics card disables itself. Thus, the best and first option you can try is to check if the graphics card is enabled or not. To do so, follow these steps:

• Tap the Win + R keys to open the Run dialog box.
• Then type “devmgmt.msc” in the field and hit Enter to open the Device Manager.
• After opening the Device Manager, look for your graphics card option among the list of device drivers. Once you found it, check if it is enabled or not. If it’s not enabled, you should see a gray arrow pointing downwards. Right-click on the card and select Enabled.
• Next, right-click on the graphics card once more and click on the Update Driver Software option and then click on the “Search automatically for updated driver software” option.

Option 2 – Reinstall the Graphics card drivers

• Tap Win + R to open Run then type “devmgmt.msc” in the field and hit Enter to open the Device Manager.
• From there, look for the Display adapters and uninstall each one of the graphics card drivers by right-clicking on them and selecting the Uninstall device option.
• After uninstalling the graphics card drivers, close the Device Manager and tap Win + R to open Run once again.
• After that, type “appwiz.cpl” in the field and hit Enter to open Programs & Features in the Control Panel.
• Next, look for any program that’s related to your GPU manufacturers like Nvidia, AMD, or Intel. Right-click on any GPU-related entry and click on Uninstall to uninstall them and then follow the next on-screen instructions that appear afterward.
• Now restart your computer.
• Once your computer has restarted, go to the GPU manufacturer’s website and download the latest driver version for your graphics card model and then install it.
• Restart your computer once again. That should fix the problem.

Option 3 – Try reinstalling the game

If updating and reinstalling your Graphics card driver didn’t help, then you can try to reinstall the game where you’re getting the CID HANDLE CREATION or VIDEO TDR ERRORS.

Option 4 – Uninstall the programs you installed recently

Chances are, some programs that you just installed might be the one that’s causing the BSOD error. Thus, you need to uninstall the program to resolve the problem.

• In the search box, type in “control” and then click on Control Panel (desktop app) among the search results.
• After that, select Programs and Features from the list which will give you a list of all the programs installed on your computer.
• From there, look for the concerned program and select it and then uninstall it.

Note: If you have downloaded the app from the Windows Store, you can simply right-click on it from the application list and then uninstall it. In addition, you might also want to check the hardware components of your computer that might not support the operating system itself. You can disconnect all the external devices like USB drives, scanners, printers, etc., and then reboot your PC. After that, add the devices again one after the other and check if the BSOD error is now fixed or not.

Option 5 – Try disabling your monitor’s Sleep functionality

There are times when the Sleep functionality of your monitor can also cause BSOD errors like CID HANDLE CREATION or VIDEO TDR errors. There are also times when the graphics card is running in the background and the display goes to sleep and then it’s turned back on but you encounter this kind of Blue Screen error. This is why you can try to disable your computer monitor’s Sleep mode.

Option 6 – 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 CID HANDLE CREATION or VIDEO TDR errors. 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 7 – Try to run the Chkdsk utility

Running the CHKDSK utility might also help you resolve the CID HANDLE CREATION or VIDEO TDR errors. If your hard drive has issues with integrity, the update will really fail as the system will think that it’s not healthy and that’s where the CHKDSK utility comes in. The CHKDSK utility repairs hard drive errors that might be causing the problem.

• Open Command Prompt with admin privileges.
• After opening Command Prompt, execute the following command and hit Enter:

chkdsk /f /r

• Wait for the process to be completed and then restart your computer.

Recently, a few users reported that they were unable to turn on their computers for some reason and at the same time their computers Computer makes a beeping noise couple of times or continuously whenever they try to turn them on. The sounds the computers are making can be quite annoying and it also signifies that there is something wrong with them. The problem might have something to do with the hardware inside of the computer system rather than Windows 10 itself. As you know, a computer is designed to deliver audible error sounds every time some part of the hardware is not properly working. For instance, if you hear a single beep, this indicates that your GPU is having some issues and if you’re hearing two beeps, it indicates that your RAM is not working properly, whereas three beeps that repeat after a pause when you turn on your computer means that there is something wrong with the system memory. On the other hand, if your computer is beeping continuously, this means that the problem lies with the processor. To fix this issue, here are some suggestions that might help but before you proceed, make sure that you know how to manage your computer’s hardware, if not, better have some expert do it for you.

Option 1 – Try checking the RAM

One of the basic things you can do in this kind of case is to check the RAM. Prepare some screwdrivers and dig into your PC and then look for the RAM slots and ensure that they are attached firmly. There are times when moving around your computer daily can cause certain components in your computer to become loose. Worst case scenario is that the RAM might be broken so really have to replace it.

Option 2 – Try checking the graphics card

After digging into your computer, check the graphics card and give it some good cleaning. As you know, you have to remove certain components like the graphics card regularly and clean them to help increase their lifespan and avoid errors in a startup. And if it turns out that the graphics card is broken, you have to replace it with a new one to fix the problem.

Option 3 – Try checking the processor

The processor is the brain of every computer so if it ends up not working, everything else is useless. Thus, you need to check it to see if it’s firmly attached and see if it needs some cleaning of dust and other debris. After that, try turning on your computer again. If it doesn’t work, then you might have to take your system to a technician to resolve the problem for you.

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In every task carried out in the Windows 10 operating system, some of them don’t go smoothly and it could encounter a couple of errors along the way. One of these errors you could encounter is the Windows Update error code 0x8007000e. This particular error was reported to occur a lot when downloading and installing a Feature update via Windows Updates. And recently, it has been reported to occur a couple of times for the Windows 10 1903 May 2019 update. According to security experts, this error could be caused by a lack of memory or disk space as well as issues in the Windows Update mechanism. Whatever the cause is, troubleshooting this problem shouldn’t be hard as this post will give you some potential fixes you can check out. To fix this error, here are some options you need to consider:

Option 1 – Clear up temporary or junk files

The error could be caused by some temporary or junk files in your computer and so you need to clear them up to fix the problem. You can achieve that using the Storage Sense feature.

• Open Setting > System > Storage from the WinX Menu.
• From there, you will see a list of all the local and connected storage devices along with the details on the free space. Make sure that Storage Sense is on.
• Next, find a link that says “Free Up Space” and click it to open.
• After that, a screen which is the built-in program in Windows 10 will appear and will scan your computer for the following junk files so you can free up disk space:
  • Windows Upgrade Log Files
  • System created Windows Error Reporting Files
  • Thumbnails
  • Temporary Internet Files
  • Previous Windows Installation Files
  • Delivery Optimisation Files
  • DirectX Shader Cache
• Choose the files you want to get rid of and then click on the remove files option. Note that you’ll have an idea of the total size as you select any of the junk files listed above.
• Now go to the “Free Up Space Now” section and click the Clear Now button. This will get rid of all the temporary or junk files in your computer and should hopefully fix the Windows Update error 0x8007000e.

Option 2 – Reset the Windows Update components

If by any chance that the second option didn’t work, resetting the Windows Update components could also help you resolve the problem. How? Refer to the following steps:

• 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:/Windows/SoftwareDistribution/SoftwareDistribution.old
  • ren C:/Windows/System32/catroot2/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 configuring the Windows Update-related Services

• Tap the Win + R keys to open the Run dialog box.
• Then type “cmd” in the field and tap Enter to open an elevated Command Prompt.
• Next, execute the following commands. Note that you have to type and enter each the command one after the other.
  • SC config wuauserv start= auto
  • SC config bits start= auto
  • SC config cryptsvc start= auto
  • SC config trustedinstaller start= auto
• The commands you executed will make sure that the Windows Update-related services are available. Once it’s done, restart your computer and see if the Windows Update error is now fixed.

Option 4 – Try running the Windows Update troubleshooter

Windows 10 have various troubleshooters that can help you resolve many system issues. So if you’re dealing with Windows Update errors like Error 0x8007000e, you can run the Windows Update troubleshooter to resolve it. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 5 – Try to use the Media Creation tool

The Media Creation tool in Windows allows you to use the ISO installation file to make a bootable device that you can use to install Windows on your PC. Note that this is kind of different from the usual installation process as it could erase your computer’s current settings and data on the primary drive. Thus, before you proceed, you need to backup all your data into some removable drive and then use the Media Creation tool to make a bootable drive.

• After making the bootable drive, you need to plug it in your computer and then reboot.
• Next, tap the F10 or Esc key to open the boot options.
• Now set the boot priority of the removable drive the highest. Once the setup comes forth, follow the next onscreen instructions and install Windows without any problems.

As you know, every Windows Update is essential for every Windows operating system. They have to be regularly installed, especially since they include various security updates that are important to the system. However, there are times when Windows Update fails to execute properly and you get errors like the error code 0x80070BC9. When you encounter this particular Windows Update error, you will get the following error message on your screen:

“0x80070BC9 – ERROR_FAIL_REBOOT_REQUIRED. The requested operation failed. A system reboot is required to roll back changes made.”

This kind of Windows Update error is most likely caused by a newly installed problematic software, corrupted Windows Update files, or policies that restrict the behavior of the Windows Module Installer. The Windows Module Installer, also known as “WMIW” or “TiWorker.exe”, is the one that checks for new updates from the Windows server and installs them on your computer. This is why you need to make sure that you do not have any policies that control the start behavior of the Windows Module Installer since this service must not be hardened to any start value and should be managed by the operating system. To resolve the Windows Update error code 0x80070BC9, you can check out the options provided below.

Option 1 – Try checking the status of the Windows Modules Installer Worker Service

Since the Windows Update error code 0x80070BC9 has something to do with the Windows Module Installer Worker service, you need to check its status in the Service Manager. Refer to the following steps to do so.

• In the Cortana search box, type “services” and click on the Services icon to open the Services Manager. Alternatively, you can also tap the Win + R keys to launch the Run prompt and then type “MSC” in the field and hit Enter to open the Services Manager.
• After opening the Services Manager, look for the Windows Modules Installer Worker Service.
• Once you found it, check its status and make sure that its Startup type is set to Manual.
• Now click on the Start button and see if it fixes the Windows Update error.

Option 2 – Run the Windows Update Troubleshooter

You might want to run a built-in Windows Update troubleshooter to resolve the Windows Update error. It is one of the things you can check out as it is known to automatically resolve any Windows Update errors like error code 0x80072EE2. To run this troubleshooter, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 3 – Try contacting the IT administrator to modify the group policies

You could also try to contact the IT administrator to have the group policies modified. This option is applicable for company-managed systems. As mentioned, one of the possible causes of the Windows Update error 0x80072EE2 is the policies that control the start behavior of the Windows Module Installer. Thus, you need to have them removed so that the Windows Module Installer Worker service is managed by the operating system itself. And since there could be many policies, it is highly advised that you contact your company’s IT administrator to get the job done for you.

Option 4 – Try to install the Windows Updates in a Clean Boot State

There are some instances that some conflicting programs installed in your computer might be the one that’s causing Windows Update error code 0x80070BC9. To identify which program is causing the problem, you need to put your computer in a Clean Boot State. To do so, follow the steps below.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• From there, start to isolate the problem by checking which one of the programs you installed recently is the root cause of the problem.

If you get an Error Code 15 or Error Code 16 while you are browsing the web and you notice that your access is blocked to a particular website, then read on as this post will guide you in resolving this problem. Both Error Code 15 and Error Code 16 have the same message that states, “Access Denied: This request was blocked by the security rules”. Note that the error depends on what kind of browser you are using, as well as the operating system and network that you are using. On the other hand, the fixes for this error are the same and there is a handful of them that you can check out just make sure to follow each one of them carefully.

Option 1 – Sync Date and Time

The first thing you can try is to sync the Date and Time of your computer as the wrong Date and Time settings are one of the most common causes of connection problems like Error code 15 or Error code 16. This is because of the incompatibility between the SSL Certificate validation date and the System Clock. Thus, you have to sync your System Clock. Refer to the steps below to do so.

• Right-click on the Taskbar and click on the Adjust Date and Time option.
• Next, click on the Sync Now button to synchronize the Date and Time with the Microsoft Servers.
• Now make sure that the Time Zone that’s set on the same page is correct.

Option 2 – Try to reset the affected browser

Resetting the affected browser might help in fixing Error Code 15 or Error Code 16.

Mozilla Firefox

• Open Firefox and click the icon that looks like three stacked lines located at the top-right section of the browser.
• Next, select the question mark icon from the drop-down menu.
• Then select “Troubleshooting information” from the slide-out menu.
• After that, click on the “Reset Firefox” button located at the top-right section of the newly opened web page.
• Now select “Reset Firefox” in the confirmation pop-up window that appears.

Google Chrome

• 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.

Internet Explorer

• Launch Internet Explorer.
• Next, click the wrench icon for Settings.
• Then click Internet Options.
• After that, go to the Advanced tab.
• From there, click the Reset button. This will reset Internet Explorer’s settings to their default condition.
• Now click OK to save the changes made.

Option 3 – Temporarily disable Firewall and third-party antivirus

Firewall and antivirus programs are known to block files the instant it detects a threat to the system. However, there are some cases when it can also block a file even when it’s a safe one. Thus, your antivirus or firewall programs might be the reason why you can’t download anything on your Windows 10 computer. To isolate the issue, you need to temporarily disable both the Firewall and antivirus programs and then check if you can now download anything from the internet. Do not forget to enable them again as disabling them can leave your computer vulnerable to cyber threats.

Option 4 – Disable the Proxy server

You can also try to disable the Proxy server for your LAN to fix Error code 15 or Error code 16 especially if your computer was attacked by some malware or adware recently. In such cases, there is a chance that the malware or adware has changed your network settings in order to generate intrusive advertisements. Thus, you have to disable the proxy server and you can do that by following these steps:

• Tap the Win + R keys to open the Run dialog box.
• Then type “inetcpl.cpl” in the field and hit Enter to pull up the Internet Properties.
• After that, go to the Connections tab and select the LAN settings.
• From there. Uncheck the “Use a Proxy Server” option for your LAN and then make sure that the “Automatically detect settings” option is checked.
• Now click the OK and the Apply buttons.
• Restart your PC.

Note: If you are using a third-party proxy service, you have to disable it.

Option 5 – Check your VPN

If you are using a VPN application, there are times when it causes some issues like this error. If that’s the case, you can try to disable your VPN temporarily and see if the error is resolved or not and if turns out that your VPN is the culprit, you have to uninstall it and install a new one or its latest version. To uninstall it, follow the steps below.

• Tap the Win + R keys to open the Run dialog box
• Then type “appwiz.cpl” in the field and hit Enter to open the Programs and Features in Control Panel.
• From there, look for the VPN service you are using, select it and then click on Uninstall to remove it.
• After that, restart your computer and try to install the latest version of the program again. It should work now. If not, proceed to the next available option below.

When trying to run Computer Management, or when running mmc.exe or compmgmt.msc from a command prompt you get the error that the application has been blocked for your protection then keep reading in order to solve the issue. This is a permission issue where if a regular user tries to run such system tools will result in saying that it has been blocked. Along with this, you may have a Group Policy issue. This can be fixed, but you will need admin permission to achieve it. It’s because when they are run from the command prompt with elevated privileges, it works.

1. Change Group Policy Settings

   If your account is an admin account, and you are still facing the issue, then change the group policy settings: Open Group Policy Settings by typing gpedit.msc in the run prompt followed by pressing ENTER Navigate to User Configuration > Administrative Templates > Windows Components > Microsoft Management Console > Restricted/Permitted snap-ins Locate Computer Management policy, and double click to open it Enable it, exit Group Policy. When Enabled: The snap-in is permitted and can be added into the Microsoft Management Console or run from the command line as a standalone console. When Disabled: The snap-in is prohibited and cannot be added into the Microsoft Management Console or run from the command line as a standalone console. An error message is displayed stating that the policy is prohibiting the use of this snap-in.

2. Temporarily disable UAC

   UAC is the user access control panel, and if you need to run the command right away, you can choose to disable it for some time. Click on the Start button, and then type UAC to find the User Account Control Settings. Click to open, and then slide down the notification setting at the bottom. It will temporarily allow launching the application as there is no check. However, make sure to switch to default once you are done.