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Blinking or Flashing Desktop After login - Windows 10 Upgrade

Blinking or Flashing Desktop After login - What does it mean?

Upon updating to Windows 10, some users might encounter a blinking or flashing desktop after logging in. This will result in a repetitive restarting of explorer or you won’t be able to make the start menu and shortcut keys work. In addition, the network icon might not appear in your taskbar as well. Other Windows 10 error messages include error code 0xc000021a.

Solution

Restoro box imageError Causes

Your blinking or flashing desktop after logging in might be the result of problems with the bushell.dll shell extension, which is a part of the Norton Security Suite. Another possible cause for this annoying problem is an issue with your display driver since not all systems will use the same display driver and will depend on what graphics card you use.

Further Information and Manual Repair

In fixing the bothersome blinking or flashing desktop after logging in problem, you can do a manual repair method to address the root problem. You need to be familiar with the Windows command line to successfully go through the process. However, if you are not knowledgeable or confident enough to do this on your own, it would be best to seek help from a professional. Or, you might want to consider using an automated tool to solve the issue.

You need to identify first what’s causing the blinking or flashing of your desktop after login to properly address the issue. The following methods can be done if your issue is caused by bushell.dll shell extension issue:

Method One: Forcefully Terminate Process

  1. Press on Ctrl+Alt+Del then select Task manager
  2. Start a Command Prompt as an administrator by choosing the File menu then Run New Task.
  3. Type exe. Make sure to tick the checkbox “Create this task with administrative privileges.”

NOTE: Text input is most probably affected by the explorer restarts so you might need to repeatedly type some letters or to carefully input texts.

  1. In the Command Prompt, type taskkill /f /im explorer.exe. This will stop the blinking or flashing.
  2. Type cd “Program Files” afterward, type dir /s bushell.dll to locate where the dll is. (For example, purposes, use c:\program files\Norton Security Suite\Engine6422.5.2.15 as the location)
  3. If the dll file is not found, you can try repeating step 5 but this time, use “Program Files (x86)” However, you can proceed with the next step if you already located where the bushell.dll is.
  4. Type cd ”c:\program files\Norton Security Suite\Engine 6422.5.2.15” to change the name of the directory you found the dll in.
  5. Type ren bushell.dll bushell-crash.dll
  6. Restart now the system by typing shutdown /r /f /t o in the command line.

Method Two: Uninstall Programs

  1. Log out then go to the sign in screen
  2. Press the Shift key as you simultaneously click on the Power button on the screen.
  3. Continue pressing on the Shift key as you click
  4. Continue pressing on the Shift key as you wait for the Advanced Recovery Options menu to appear.
  5. Once the Advance Recovery Options menu appears, click on Troubleshoot then select Advanced options.
  6. Click on the Startup Settings then select
  7. Boot on Safe Mode by pressing 4 on your keyboard.
  8. Log in then press Windows key + X.
  9. Select the Device Manager then expand Display Adapter.
  10. On your Display Adapter, right-click then select
  11. Exit Device Manager
  12. If in case you also have an older Antivirus utility, you should uninstall it as well.
  13. Restart

NOTE: You might need to download the latest Video Driver on a working computer. Save it in a thumb drive then copy and install it on your computer. If in case there is no native Windows 10 driver, you can also download the latest Windows 7 or Windows 8.1 video driver. Afterward, install it in compatibility mode.

Method Three: Use Microsoft System Configuration Utility

  1. Log out then go to the sign in screen
  2. Press the Shift key as you simultaneously click on the Power button on the screen.
  3. Continue pressing on the Shift key as you click
  4. Continue pressing on the Shift key as you wait for the Advanced Recovery Options menu to appear.
  5. Once the Advance Recovery Options menu appears, click on Troubleshoot then select Advanced options.
  6. Click on the Startup Settings then select
  7. Boot on Safe Mode but this time, choose 5 to start in Safe Mode with networking.
  8. Check if your problem is present or not in Safe Mode. If not, then you are on the right track.
  9. Press on the Windows key + R then type msconfig to start up your exe file.
  10. Click on the Services tab then choose Disable All. Afterward, click on
  11. Once you’re prompted to reboot your computer, go ahead and reboot in Normal Mode. Check if the issue is still present.
  12. If the blinking or flashing desktop after login is gone, then you can just do a process of elimination.
  13. Start-up on your exe again then begin bringing up services a few at a time.
  14. You can turn on all other services except for the following which causes the blinking or flashing desktop after login problem:
    Problem Reports and Solutions Control Panel Support
    •Windows Error Reporting Service.

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Fix Msvcr120.dll_clr0400.dll Missing Error
DLL files have certain functions that help the programs in the computer run properly. One of these DLL files is the Msvcr120.dll_clr0400.dll. This particular DLL file is responsible for the extraction of the required resources during the installation of a program and is used when the program is launched or when games are launched in the C++ language. However, a number of users recently reported that they’ve encountered an error that says, “Msvcr120.dll_clr0400.dll is missing” when they tried to install an application or when they tried opening an application. This kind of error could be due to several factors. It is possible that the DLL file is corrupted or there are some programs that interfere with the DLL file. On the other hand, it is also possible that it has been infected by a virus. To resolve this error, here are some potential fixes you need to check out:

Option 1 – Run System File Checker scan

The first thing you can do to fix the error is to try running the System File Checker or SFC scan. System File Checker is a command utility built into your computer that helps restore corrupted files and missing files. Refer to the following steps to run it:
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  • Type in cmd in the field and tap Enter.
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  • Reboot your computer.

Option 2 – Troubleshoot the missing Msvcr120.dll_clr0400.dll error in a Clean Boot State

You can also troubleshoot the isDone.dll error in a Clean Boot state. It could be that there are some third-party applications in your computer that are preventing the application from getting installed and to isolate this possibility, you need to boot your computer in a Clean Boot State and then try installing the program again. Putting your computer in this state can help you identify which program is the culprit and thus isolates the problem. In a Clean Boot state, your computer will start using only the pre-selected minimal set of drivers and startup programs. Note that you have to disable and enable one process at a time.
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Option 4 – Try to replace the DLL file with a trusted source

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  • 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.
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  • 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.
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Option 5 – Scan your computer using Windows Defender

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Error Code 0x8007001 - What is it?

Error Code 0x8007001 occurs during installations that take place in Windows 10.  Various versions of this same error have also been present in previous editions of the software and the methods to resolve the error across these versions are the same

Common symptoms include:

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Solution

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In many cases, Error Code 0x8007001 is caused by an installation disk that is not functioning properly or installation files that have been corrupted or changed. When this is the case, the operating system will not be able to begin actually installing the files and will instead hang up as the files are unpacked from the installation set.

Further Information and Manual Repair

For Error Code 0x8007001 to be repaired properly, the missing or corrupted installation files need to be repaired or the system needs to be able to recognize the files that it is missing. This can require some advanced computing knowledge. If you don’t feel comfortable with the idea of undertaking the methods below on your own, contact a computer repair technician who can assist you in following these steps.

Method One:  Load the Install Files on an Alternative Disk

In some cases, the operating system simply cannot recognize the installation files that are present on the disk in question, whether it is on a hard drive, a set of downloaded files, or files from a flash drive. If this is the case on your particular machine, the simplest way to work around the problem is to load the installation files onto an alternative disk source, whether it be a flash drive, CD, DVD, or secondary hard drive. After these files have been properly loaded onto that alternative disk, attempt to run the installation from the alternative source instead.

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Method Two:  Clean Your Disc and Your Drive

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Method Four: Use An Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.
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Solution

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Ways to avoid PUPs

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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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Fix Windows Update Error 0x80004005
As you know, Microsoft is consistent in pushing updates to its supported versions of the Windows operating systems in order to make it better and defend it from different kinds of vulnerabilities. And pushing billions of active Windows computers every now and then is really not an easy thing to do since it calls for a complex Windows Update delivery module. These complexities often give rise to various errors like the Windows Update error code 0x80004005. When you encounter this kind of Windows Update error, you will see the following error message on your screen:
“There were problems installing some updates, but we’ll try again later. If you keep seeing this and want to search the web or contact support for information, this may help 0x80004005.”
This kind of Windows Update error occurs due to an issue while either installing or downloading an update. There are several ways you can fix the problem. You can try to replace the dpcdll.dll file, reset the Windows Update-related services, run the Windows Update troubleshooter or manually install the Windows Updates. For more details, check out the options given below.

Option 1 – Try to replace the DLL file with a trusted source

The first thing you can do is to replace the dpcdll.dll file with a trusted source.
  • First, you need to get the new dpcdll.dll file from another computer with preferably the same file version number as your computer.
  • 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.
    • For x86: This PC > C:/Windows/System32
    • For x64: This PC > C:/Windows/SysWOW64
  • Next, type “cmd” in the Cortana search box and right-click on Command Prompt, and select “Run as administrator” to open it with administrator privileges.
  • Now type the “regsvr32 dpcdll.dll” command and hit Enter.
  • Restart your PC and check if the error is now fixed.

Option 2 – Try to reset the Windows Update components

If by any chance that the third option didn’t work, you can also try resetting the Windows Update components as it could also help you resolve the Windows Update error. 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: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 – Run the Windows Update Troubleshooter

You might also want to run the Windows Update Troubleshooter as it could also help in fixing Windows Update error 0x80004005. 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 – Try downloading and installing the Windows Updates manually

Windows Update Error 0x80004005 might be due to a Windows Update that has failed. So if it is not a feature update and only a cumulative update, you can download the Windows Update and install it manually. But first, you need to find out which update has failed, and to do so, refer to the following steps:
  • Go to Settings and from there go to Update and Security > View Update History.
  • Next, check which particular update has failed. Note that Updates that have failed to install will be displayed under the Status column which has a label of “Failed”.
  • After that, go to the Microsoft Download Center and look for that update using its KB number and once you find it, download and then install it manually.
Note: You can also use the Microsoft Update Catalog, a service from Microsoft that provides a list of software updates that can be distributed over a corporate network. With the help of this service, it can be easier for you to find Microsoft software updates, drivers as well as fixes.
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CHKDSK cannot open volume for direct access
One of the most useful built-in tools in Windows 10 is the Check Disk or CHKDSK utility. It is the one that maintains the integrity of the disk that’s connected to a computer which can be launched using the GUI or graphical user interface and using the command line. There are a lot of things that warrant the running of this built-in utility and one of these things is the readability of the disk. Recently, a number of users reported that they encountered an error when they tried to run the CHKDSK utility – the error states, “Cannot open volume for direct access”. This kind of error in CHKDSK appears each time the command line is launched according to the affected users. As per the users who encountered this issue, they receive the following error messages when they tried running a ChkDsk command:
“C:WINDOWSsystem32>chkdsk /f g: Cannot open volume for direct access. C:WINDOWSsystem32>chkdsk /f f: The type of the file system is NTFS. Volume label is 0529357401.”
To fix the “Cannot open volume for direct user access” error, here are some suggestions that might help. Follow them carefully.

Option 1 – Try running the CHKDSK utility on Boot

On the other hand, you can also try to run the CHKDSK utility on Boot so you can fix the error and recover any damaged segments of the drive.
  • Open an elevated Command Prompt and enter this command: chkdsk /x /f /r
  • After that, you will a message that says, “Chkdsk cannot run because the volume is in use by another process. Would you like to schedule this volume to be checked the next time the system restarts? (Y/N)”
  • Type Y and tap Enter to schedule a CHKDSK scan once your computer reboots next time.

Option 2 – Try to run the Primary Hard Disk Self Test

The next thing you can do to fix the problem is to run the Primary Hard Disk Self Test by following the steps below.
  • You need to boot your computer into the BIOS first.
  • After that, go to the Diagnostics tab and select the “Primary Hard Disk Self Test” option. Note that it may be different depending on the motherboard with different manufacturers but they should imply the same thing.
  • Now, wait until the test is completed, and then boot your computer normally.

Option 3 – Try to check the hard drive’s health

The next thing you can do to resolve the issue is to check the health of your hard drive using the WMIC utility in the Windows Command Prompt. This utility will check if your hard drive has any problems which resulted in the “Cannot open volume for direct user access” error.

Option 4 – Try to disable various restrictions on your hard drive

You might also want to disable the various restrictions on your hard drive since it is possible that it is encrypted or restricted which explains why you are unable to perform any operations in it and throws the “Cannot open volume for direct user access” error instead. For instance, if you have BitLocker, you can try to disable it and see if it fixes the error or not.

Option 5 – Try to uninstall or disable the Drive Locking feature on your hard drive

You could also look for any Drive Locking feature on your hard drive that tricks disk changes as it might be the root cause of the problem. Thus, if you find one, you need to either uninstall or disable it and then execute a check disk command to resolve the problem.

Option 6 – Try to disable the application service

Disabling the application service can also help you fix the problem. How? Refer to these steps:
  • Tap the Win + R keys to launch the Run utility and type “services.msc” in the field and then hit Enter to open the Services Manager.
  • Next, scroll down among the list of services and look for the service related to the security software or disk checker software.
  • Once you find it, right-click on that service and select Properties.
  • After that, change its Startup type to Disabled and click on the OK and Apply buttons to save the changes made.
  • Now restart your computer and don’t forget to enable the service back once the disk check is completed.

Option 7 – Try to use Repair Volume via Windows PowerShell

You could also try to use the Repair Volume using Windows PowerShell. All you have to do is open PowerShell as admin and type the “repair-volume -drive letter <DRIVE LETTER>” command and then tap Enter to run Repair Volume. This should resolve the error.
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