Folder shortcuts in Windows 11 on Start menu

Windows Updates are checked for their validity every time they are downloaded from Microsoft servers just like how browsers check websites for a valid certificate. And so if you got an error message saying, “ Some update files aren’t signed correctly, error code 0x800b0109 ” while trying to update your computer, it indicates that the Windows service was unable to verify the validity of the Windows Update. To fix this error, you can try out the options prepared in this post.

Option 1 – Reboot your computer and try again

Save your work and reboot your computer and then try checking for updates again. In some cases, all you need is a restart to fix errors like error code 0x800b0109.

Option 2 – Try to update Windows after an hour or so

There are times when the issue is from Microsoft’s end. It could be that there’s some issue with Microsoft’s server so it would be better if you give it an hour or so before trying to run Windows Update again.

Option 3 – Try running the Windows Update Troubleshooter

Running the built-in Windows Update troubleshooter is one of the things you can first check out as it is known to automatically resolve any Windows Update errors like Error 0x8007001E. 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 4 – Delete the contents in the Temporary folder

You can also try deleting the contents in the Temporary folder – all the downloaded, pending, or failed Windows 10 updates. You can do that using the simple and easy steps below.

• Tap the Win + R keys to open the Run dialog box.
• Then type “%temp%” in the field and press Enter to open the Temporary folder.
• After that, select all the folders and files within the Temp folder and delete all of them.

Option 5 – Clear the contents in the Software distribution and Catroot2 folders

• Open the WinX Menu.
• From there, open Command Prompt as admin.
• Then type in the following command – don’t forget to hit Enter right after typing each one of them.

net stop wuauserv net start cryptSvc net start bits net start msiserver

• After entering these commands, it will stop the Windows Update Service, Background Intelligent Transfer Service (BITS), Cryptographic, and the MSI Installer
• Next, go to the C:/Windows/SoftwareDistribution folder and get rid of all the folders and files thereby tapping the Ctrl + A keys to select them all and then click on Delete. Note that if the files are in use, you won’t be able to delete them.

After resetting the SoftwareDistribution folder, you need to reset the Catroot2 folder to restart the services you just stopped. To do that, follow these steps:

• Type each one of the following commands.

net start wuauserv net start cryptSvc net start bits net start msiserver

• After that, exit Command Prompt and restart your computer, and then try to run Windows Update once more.

Option 6 – Install the updates in a Clean Boot State

You might want to try putting your computer in a Clean Boot state and then install Windows Updates again without any trouble. During this state, you can start the system with a minimum number of drivers and startup programs that will surely help you in isolating the root cause of the issue.

• 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.)
• After that, try to install the Windows Updates or upgrade again.

What is Mapi32.dll Outlook Error?

Mapi32.dll is a Windows Messaging Application Programming Interface that enables Windows to perform various email functions and launch messaging programs like Microsoft Outlook and Microsoft Office. The inability of the interface to execute email functions properly results in the Mapi32.dll Outlook Error. This error occurs mostly when you are attempting to upgrade the operating system to a new version.

Solution

Error Causes

The common causes of the Mapi32.dll Outlook Error during the OS upgrade are:

• Damaged or Corrupt Outlook user profile
• The software is overwritten by some other program
• Outlook PST file corruption

The Mapi32.dll Outlook Error message is displayed in either of the following forms:

• Mapi32.dll is missing
• Cannot start Microsoft Office Outlook. Mapi32.dll is corrupt or the wrong version.
• Mapi32.dll was not found
• Mail is not installed

Further Information and Manual Repair

So, what if you experience this issue and how do you fix it? Well, first there is no need to panic as Microsoft has recognized this issue and provided adequate solutions to fix this problem in no time. However, to ensure the Mapi32.dll Outlook error is a quick fix, you must first understand the cause of the issue and the message displayed on the screen.

1. Let’s say the errors occur because your Outlook profile is corrupt. In this scenario, the best solution is to create a new Outlook profile. Regardless of whether you have Windows Vista or XP, to create your new Outlook profile, first, you will have to click on the Control Panel, then User Account, and then Mail. Once you click on the Mail tab, the mail set up dialog box will open. In this dialog box there will be a ‘Show Profiles’ tab, click and then click the Add tab that appears next. Now type the name for your new Outlook profile and then click ‘OK’. After that, add an email account to go with the profile.
2. If Mapi32.dll is missing or corrupt, you will have to run ‘Fixmapi.exe’ to resolve the problem. It is located in the System32 folder inside the Windows directory in Windows Explorer.

• Therefore, first start Windows Explorer and then locate the following folder on your computer: C: /Program Files/Common Files/System/Msmapi1033
• Now find Fixmapi.exe and double click it
• After that locate the Mapi32.dll file and rename it to MSmapi32.old and press enter.
• Restart your computer when finished.

A word of advice for computer users is to scan for viruses with an antivirus program or a registry cleaner regularly to prevent the Mapi32.dll Outlook error from occurring in the first place. Viruses often latch onto .dll files and corrupt them. It’s always best to have a forward-looking approach.

Setting up the Windows operating system in a computer can be quite a complicated task since there are a couple of things that take place in the background to ensure a full and protected setup of the operating system which includes a number of programs, scripts, and so on. They work together in the background to guarantee the integrity of the Windows operating system. However, there are times when this piece of code could also go wrong. As a result, you might encounter errors like the “There was a problem running preinstall.cmd scripts” error. “Preinstall.cmd” is a type of CMD file associated with Applications & Drivers developed by Gateway for the Windows OS. To fix the “There was a problem running preinstall.cmd scripts” error, there are several things you can try. You can try to download a new Windows installation image or create a new bootable drive as well as uninstall conflicting or incompatible programs. In addition, you can also run the Windows Update troubleshooter or reset Windows 10.

Option 1 – Try to download a new Windows installation image

Your first option to fix the “There was a problem running preinstall.cmd scripts” error is to download a new Windows installation image. You can get the official ISO files for the latest release of Windows 10. After you’ve downloaded the ISO files, you can use them to upgrade to the latest Windows 10 version.

Option 2 – Try creating a new bootable drive

• Insert your USB drive into your PC.
• Tap the Win + R keys to open the Run dialog box and type in “cmd” and tap Enter to open the Command Prompt. Alternatively, you can also search for “cmd” in the Cortana search box to open Command Prompt.
• Once you’ve opened CMD, type in this command to open the DISPART utility – diskpart
• After that, you should see a new black and white window that would say, “DISKPART>”.
• Next, type in “list disk” in the command line and tap Enter to see the list of all the Storage devices as well as your hard disk connected to your PC. Here, you have to identify your disk’s number.
• Type in this command where “X” is the disk number you have identified and then tap Enter – disk X
• Type in this command and hit Enter to clear the table records and all the visible data on the drive – clean
• Now you have to recreate a new primary partition of the drive so you’ll have to type in this command and tap Enter right after – create part pri
• A new primary partition has been created so you have to select it by typing this command and tapping Enter – select part 1
• Now you have to format it to make it visible to normal users by typing – format fs=ntfs quick

Note: If your platform supports the Unified Extensible Firmware Interface or UEFI, replace the “NTFS” with “FAT32” in the command on Step 10.

• After that, type in this command and tap Enter after – active
• Finally, type this command and hit Enter to exit the utility – exit
• After you prepare the image for the operating system, save it to the root of your USB Storage device.

Option 3 – Try to uninstall conflicting programs

If you are using a computer made by Dell and got Windows 10 preinstalled in it, then you can try to uninstall the programs listed below and see if it fixes the problem.

• Dell Encryption Management service
• Dell Digital Library service

Option 4 – Run the Windows Update Troubleshooter

You might also want to run the built-in Windows Update Troubleshooter in Windows that could help you in resolving the “There was a problem running preinstall.cmd scripts” error. All you have to do is go to Settings > Update& security > Troubleshoot > Windows Update. From there, click on the Run the troubleshooter button and follow the next one-screen instructions that appear. After that, restart your computer and check if the error is now fixed or not by trying to install the update once again.

Option 5 – Run Microsoft’s online troubleshooter

Running Microsoft’s online troubleshooter might also help you fix the error. This online troubleshooter is known to help in fixing Windows Update errors, it scans your computer for issues that might be causing the problem and then fixes them automatically.

Option 6 – Try to reset Windows 10

• 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.

Windows 10 users a set of rules or standards called Network Protocols in communicating over the internet. These protocols are the ones that made sure that the data is correctly sent between computers. However, if any of the Network Protocol is missing in your Windows 10 computer, then you will most likely encounter a problem like not being able to browse the internet, or share files. For this, you can try to run the Incoming Connections troubleshooter: As you were not able to connect to your internet connection using your PC, you can try to run the Incoming Connections troubleshooter as it might resolve the problem. Refer to the following steps to run this troubleshooter:

• Tap the Win + I keys to open Settings.
• After opening Settings, go to Update and Security.
• Next, navigate to the Troubleshoot pane and select the Incoming Connections section and click the Run Troubleshooter button to get started.
• Wait until the troubleshooter is finished doing its job and then try connecting to your network again.

If after running the Incoming Connections troubleshooter you receive an error message instead that says, “Network Protocol is missing”, then here are some suggestions you need to check out to fix it. Take note that you must have admin privileges before you start troubleshooting the problem.

Option 1 – Try to update or rollback or uninstall the Network drivers

You might also want to update, roll back, or disable your Network drivers to fix the “This operation failed as no adapter is in the state permissible for this operation” error.

• 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.
• Then right-click on each one of the Network drivers and depending on your preference, you can either select “Update driver”, “Disable device” or “Uninstall device”.
• After that, restart your PC and see if it helped in fixing the netio.sys Blue Screen error.

Option 2 – Try to reset Winsock, TCP/IP & Flush DNS

You might also want to try resetting Winsock, TCP/IP, and flushing DNS might help you resolve errors. 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 3 – Diagnose the Network Adapter

To diagnose the Network Adapter, go to Control Panel > All Control Panel Items > Network Connections, and from there, look for the network adapter that could be causing the error. Note that if you are using a Wi-Fi connection, then it’s probably your Wi-Fi adapter, otherwise it has something to do with your Ethernet adapter. Just right-click on the problematic network adapter and select diagnose to troubleshoot.

Option 4 – Try to perform Network Reset

You can also try to perform a Network Reset to resolve the problem. This will reset the entire network configuration including your IP address. To perform Network Reset, follow these steps:

• Tap the Win + I keys to open Settings.
• From there, go to the Network and Internet section.
• Next, scroll down and look for “Network Reset” under the status pane.
• After that, click on Network Reset and then on Reset now to start resetting the network configuration. Once done, check if it is able to fix the error or not.

Option 5 – Try importing Winsock settings from another computer

If resetting Winsock or the Network didn’t fix the problem, then you can try to import settings from a computer that’s in good condition. You need to have access to the registry to get this done and then export and import a couple of settings. Refer to these steps to get started:

• Tap the Win + R keys to open the Run dialog box and type “Regedit” in the field and hit Enter to open the Registry Editor.
• After that, go to this registry path: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServices
• Next, look for two registry keys named “Winsock” and “Winsock2” and then right-click on each one of them and select the Export option.
• Now copy the registry keys to a USB drive and then copy the keys on the PC in excellent condition.
• Then double click on each one of them and it will install the WINSOCK keys.

Libcurl.dll - What is it?

Libcurl.dll is a Dynamic Link Library file; a component of Google Earth. Google Earth is a 3D software tool. Libcurl.dll file is visible within a 3D application with the help of which software users can see satellite images, maps, and other geography-related information from their computers. The Libcurl.dll file enables users to map the earth using superimposing images received via satellite imagery and also aerial photography. However, Libcurl.dll error messages may occur while using or installing this program. The libcurl.dll error message is displayed in either of the following formats:

• "Cannot find [PATH]libcurl.dll"
• "The file libcurl.dll is missing."
• "Libcurl.dll Not Found"
• "This application failed to start because libcurl.dll was not found. Re-installing the application may fix this problem."

Solution

Error Causes

Libcurl.dll may occur due to several reasons. These include:

• Bugged program
• Viral infection may add malicious codes to Libcurl.dll file and generate error messages
• Registry issues
• Missing libcurl.dll file
• Hard disk failure
• Misconfigured system files

If you experience difficulty in using Google Earth and come across libcurl.dll error message, it is advisable to resolve the error immediately typically because this error has severe consequences. If not fixed timely, it can lead to the blue screen of death errors, system hang-ups and freezes, sluggish PC performance, PC crashes and browser crashes, slow internet speed, and other system errors.

Further Information and Manual Repair

This error is crucial but the good news is that it is easy to fix. To resolve it, you don’t have to hire a technical expert and pay hundreds of dollars. You can repair the issue with ease by yourself regardless of whether or not you are technically sound. Continue reading to find out the best solutions to fix libcurl.dll error code on your system without any hassle. Here are some of the easiest and the best methods to resolve libcurl.dll error:

1. Check your recycle bin

Since .dll files are shared by multiple programs, there is a possibility that you might have accidentally deleted libcurl.dll file when uninstalling a certain program on your system which was also sharing this file. And because of this, you may experience the missing libcurl.dll error message. To resolve it, all you have to do is to check your recycle bin. If you find the file here, restore it. Once restored, try running the program again! If the error code does not appear, then this means it is resolved. However, if it continues to persist, then try other solutions given below.

2. Scan for Malicious Software on your System

While downloading files and checking unknown emails malicious software like viruses, malware and spyware can also enter your PC. Such software can damage and corrupt dll files. This could be the underlying cause of libcurl.dll error on your PC too. So, to resolve the issue, scan and remove malicious viruses and spyware from your system by using a powerful anti-virus. However, please note, anti-viruses are notorious for slowing PC performance and also sometimes you may also have to stop all other activities on your PC.

3. Clean the Cluttered Disk, Repair dll files and Restore the Registry

Libcurl.dll file error may also occur due to hard disk failure. This triggers registry issues. If you don’t clean the registry every now and then, it overloads the hard disk with files. These include both important and unnecessary files like internet history, temporary files, cookies, junk files, invalid registry entries, and bad keys. These clutter the disk, damaged dll files, and the registry. Therefore first you need to clean the cluttered disk, repair libcurl.dll files and restore the registry. Executing it manually can take a lot of time as you may find it complex if you are not a computer programmer. However, the best, easiest, and quickest way to clean, repair, and restore the registry is to download Restoro

Why Restoro?

Restoro is an innovative, advanced, and multi-functional PC repair tool loaded with powerful and PC performance boosting utilities including an intuitive registry cleaner,  an antivirus, Active X controls, and class module, and a system optimizer. So, whether the libcurl.dll error message is triggered by a viral infection, hard disk failure, or registry issues, this tool takes care of all! The registry cleaning feature scans all registry issues, cleans the hard disk by removing unnecessary and obsolete files, repairs damaged and corrupt dll files, and restores the registry thereby resolving libcurl.dll error in seconds. Simultaneously, the antivirus utility removes viruses and malware if found. And the system optimizer feature ensures optimum PC performance. Restoro is easy to navigate and operate. It is user-friendly, safe, bug-free, and efficient. Furthermore, it is compatible with all Windows versions. Click here to download Restoro and repair your PC and resolve libcurl.dll error today!

No one knows everything about a program off hand. You need to use the program for a long time before you can even possibly know all that it is able to do and all you are able to achieve with it. However, this doesn’t mean that you don’t need help from time to time. This is also the case when Outlook errors pop up. Sometimes there are things you must or probably should do with your program that you do not understand and definitely don’t know how to do. Set up POP3 with your email account in Outlook is one of these things you will probably need help to achieve.

Steps to Set up POP3

First, you may need to know what POP3 is. POP3 is the way emails are sent from one email address to another. It may be more or less instant nowadays, but the process is still long and hard-winded. Similar to how your letters get from your mailbox to the recipients' mailbox, your emails get from you to the next person. Letters are picked up in your mailbox and sent to your post office where they send it to the recipient’s post office who sends it to the recipient’s mailbox. Similarly, your email is sent to your outbox, which sends it to your email service provider, that sends it to the recipient’s email service provider who sends it to their inbox. This is one of the reasons that sending an email to someone who uses the same email service provider as you is about a millisecond faster. This process of sending emails is called POP3 and you need to set it up if you use Outlook on Microsoft. This, on Outlook, also determines which email account you send your emails from. You see, on Outlook and many other email service providers, you can have many different email addresses, no even necessarily with the email service provider’s prefix on the end. Now, if you want to see this for yourself, go on to your settings on Outlook and look for manage email accounts. If you have more than one email account, you will see them listed. Somewhere on the sidebar, you will see POP3 as well. If you want to add more email accounts to this, such as a business email or a personal email, then just click ‘Add new account’ instead of 'Manage email accounts'. When you click on an email account you have linked already, you will see on this side the details for your POP3 (incoming emails) and your SMTP (outgoing emails). This can be changed, but since everyone’s number of accounts and type of accounts is different, there is no set way to change this. However, you can give Microsoft a call and they will walk you through the necessary steps in order to change this.

Conclusion

So, POP3 can be incredibly easy to understand or incredibly hard; it depends on how good you are with electronics and the advice you are given. But don’t try to change things by yourself; get a professional from Microsoft to help you with POP3 on your Microsoft Outlook account.

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.

What is the Error 421?

Error 421 is a common SMTP (Simple Mail Transfer Protocol) Outlook error message. MS Outlook is one of the best and popular email applications widely used by PC Windows users for sending and receiving emails within and outside workplaces. It is most commonly used in offices by professionals for faster communication. This error may occur while sending and receiving emails on the server. The error 421 messages is displayed in either of the following formats:

“An unknown error has occurred: Server error 421” "Could not send your message. Error 421" 421 4.2.1 : (DYN:T1) http://postmaster.info.aol.com/errors/421dynt1.html 421 4.3.1 Out of disk space for temp file 421 4.3.2 All server ports are busy 421 Downstream server error 421 Fork failed 421 Greylisting enabled, please try later “An unknown error has occurred. Subject ‘Testing’, Account: ‘pop.charter.net’, Server: ‘mail.charter.net’, Protocol: SMTP, Server Response: ’421 Message rejected’, Port: 25, Secure(SSL): No, Server Error: 421, Error Number: 0x800CCC67”

Solution

Error Causes

Some common causes for this critical Outlook error are:

• PST storage size exceeds 2GB file size
• Improper ISP settings
• Slow internet connection
• PST file corruption
• Trojan attack and viral infection

This is a critical Outlook error that should be resolved timely. If you delay, it may cause you a great deal of inconvenience. The error code 421 hampers your ability to access your email account, send and receive emails, add new contacts, view emails, calendar entries, and journals. In other words, it just brings your email activities to a standstill locking you out of the account.

Further Information and Manual Repair

To resolve this error code on your system, you don’t always have to hire a professional or call the network personnel to do the job. It may be a critical error but the good news is that it is quite easy to fix. Even if you don’t have technical expertise, you can still repair it. Here are some of the best methods to repair this issue on your system:

1. Change the Server Settings to its Maximum Limit

Try changing your server settings. Here set the inbound connections limit at the maximum limit.

• To do this, open the Microsoft Exchange Server Administrator utility. The access path of this utility will vary depending on the installation procedure used to set up Exchange Server.
• Once you open the MS Exchange Server Administrator utility, click the ‘Connections’ icon in the left side navigation pane. Now double click the internet mail service icon in the right side pane. As you click it, the Properties window will open.
• Now click the ‘Connections’ tab in the Properties window and then click the ‘Advanced’ button. This will open the configuration window.
• Here reset the number for ‘Maximum Number of Inbound Connections’ to a high number, its maximum limit. After changing the settings, close all open Exchange Server Administrator program windows to successfully complete the process.

After the process is complete, try accessing your Outlook email account again; if it works, then that’s great the error 421 is resolved. However, if it doesn’t, then the problem could be related to viral infection.

2. Download a PST Repair Tool

If the cause of the error is PST files corruption, then not only will you be locked out of your email account, you are also at risk of losing all the data stored in your email account. However, the best way to resolve the error and ensure full data recovery is to download a reliable PST repair tool. By running a PST repair tool on your system, you can resolve the error 421 right away. It recovers your data, repairs corrupt and damaged PST files.

3. Scan Your PC with Restoro.

If viral infection and Trojans are causing the error 421 to pop up on your system, then it is recommended to download and scan your PC with Restoro. This is an advanced, intuitive, and user-friendly PC fixer. It is not just an antivirus but also a system optimizer and a registry cleaner. Unlike common antivirus software that only removes viruses and simultaneously slows down the system’s speed, Restoro removes all types of malicious software on your PC including malware, spyware, Trojans, and viruses, and also boosts the speed of your PC significantly. It is safe, easy to operate, and a quick fixer. It is compatible with all Windows versions. Click here to download Restoro and resolve error 421 today!

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.

If you have encountered the NO_USER_MODE_CONTEXT Blue Screen error when using your computer, read on as this post will walk you through a couple of suggestions you can try to resolve this Stop error. This kind of Blue Screen error can occur when a program is trying to leverage the use of a system driver but fails to do so. Some of the common causes of this BSOD error are incompatible or corrupted drivers, incorrect configuration of entries in the Registry, damaged memory locations, malware infection, and many more. In addition, this Stop error does not often occur and indicates that an attempt to enter user mode with no context was made. If this is the first time you’ve restarted your computer after you’ve installed additional hardware, you have to remove the hardware and then restart your computer once again and then check the Microsoft Hardware Compatibility List to confirm that the hardware and its drivers are compatible with your operating system. If it doesn’t help, you can check out the given suggestions below to fix the NO_USER_MODE_CONTEXT Blue Screen error in Windows 10.

Option 1 – Try to update or rollback your device drivers

The first thing you can try to fix the NO_USER_MODE_CONTEXT Blue Screen error is to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.

• Open the Devices Manager from the Win X Menu.
• Then locate the device drivers and right-click on them to open the Properties. Note that the main drivers that might be the cause behind the NO_USER_MODE_CONTEXT Blue Screen error will be listed under the “ID ATA/ATAPI controllers” section as well as the “Storage controllers” section.
• After that, switch to the Driver tab and click on the Uninstall Device button.
• Follow the screen option to completely uninstall it.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can also directly download the relevant drivers of your computer from the manufacturers’ website. So if you have an SSD, the issue might be due to an old storage driver.

Option 2 – Try running System File Checker or SFC scan

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. 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.

 Reboot your PC.

Option 3 – Try running the Memory Diagnostic Tool

The Memory Diagnostic tool in windows can help resolve the NO_USER_MODE_CONTEXT Blue Screen error by checking and automatically fixing any memory-based issues. To run it, refer to these steps:

• Tap the Win + R keys to open Run and type exe and hit Enter to open the Windows Memory Diagnostic Tool.
• After that, it will give two options such as:
  • Restart now and check for problems (Recommended)
  • Check for problems the next time I start my computer
• Once your computer has restarted, perform a basic scan or you could also go for the “Advanced” options such as “Test mix” or “Pass count”. Simply tap the F10 key to start the test.

Note: After you select your preferred option, your computer will restart and check for memory-based issues. If it finds any issues, it will automatically fix them.

Option 4 – Perform System Restore

• First, 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 5 – Run the Blue Screen Troubleshooter

Troubleshooting Blue Screen of Death errors wouldn’t be complete without the Blue Screen troubleshooter. As you know, it is a built-in tool in Windows 10 that helps users in fixing BSOD errors like NO_USER_MODE_CONTEXT. 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.