Windows 10: OEM Windows 11 system files suddenly damaged/ corrupted.

My Lenovo laptop was pre-installed with Windows 10 and upgraded to Windows 11 when the manufacturer released the same. It was working fine until about a week ago, when suddenly after booting the laptop, I started getting messages that dll files are corrupted/damaged, through sfc/ scannow and the Malwarebytes malware protection switched off. I ran MS Defender offline/ Malwarebytes/ MS ssafety scanner scans, but nothing was detected. But now most apps won't start, and the OS isn't updating, with an error code 0x800700C1. Would appreciate any help.

:)

 

Corrupted file RAR

If the archive has been created using WinRAR, why don't you try WinRAR itself? It has a built-in repair feature for repairing corrupted archive (ZIP as well as RAR). Follow the steps given below:

• Open WinRAR application in your system.
• Now click on File tab > Open or simply press Ctrl+O.
• A small window "Find Archive" will pop up. Locate the corrupt RAR archive from your system directory and select it.
• Now click Open button.
• Click Tools tab > Repair archive or simply press Alt+R.
• Again a small window "Repairing File name.rar" will pop up.
• Now click Browse to select a location to save the repaired archive.
• Check the box "Treat the corrupt archive as RAR" and click OK.
• WinRAR will start repairing of corrupt RAR archive. Once it gets completed click Close.

I hope the above steps will help you repair the corrupted RAR archive.

Thanks.

 

Microsoft Windows Home Server Corrupts Files

Microsoft has warned Windows Home Server users not to edit files stored on their backup systems with several of its programs, including Vista Photo Gallery and Office's OneNote and Outlook, as well as files generated by popular finance software such as Quicken and QuickBooks. "When you use certain programs to edit files on a home computer that uses Windows Home Server, the files may become corrupted when you save them to the home server," Microsoft said in a support document posted last week. The document went on to list the software, which includes Windows Vista Photo Gallery, Windows Live Photo Gallery, OneNote 2003, OneNote 2007, Outlook 2007, Microsoft Money 2007 and SyncToy 2.0 Beta. Others programs, however, may also corrupt files stored on a home server powered by Microsoft's operating system. "Additionally, there have been customer reports of issues with Torrent applications, with Intuit Quicken and with QuickBooks program files," the document said. "Until an update for Windows Home Server is available, we recommend that [you] do not use the programs that are listed to save or to edit program-specific files that are stored on a Windows Home Server-based system."

Source: Computerworld

 

App's and system file corruption

Hi Nassin,

Thank you for posting your query in Microsoft Community.

I can understand how frustrating it could be when things go unusual. I will certainly help you.



Please follow the methods mentioned below and check if it helps:

Method 1:

I suggest that you reset the Windows Store cache as per the below mentioned steps and check:

• 
  Press Windows key and R key together
  to open the Run Window.
  
• 
  Type wsreset.exe and press Enter key for the command to execute.
  

Method 2:

You may try to run the in-built Windows Store app troubleshooter and check. Follow the steps:

• 
  Press Windows Key + X.
  
• 
  Click on Control Panel.
  
• 
  Select Troubleshooting.
  
• 
  On the left pane, click on View All.
  

Click on Windows Store apps to run the troubleshooter.



Method 3: Run
SFC scan.

System file check is a utility built into the Operating System that will check for system file corruption
SFC /Scannow command (System File Check) scans the integrity of all protected operating system files and replaces incorrect, corrupted, changed, or damaged versions with the correct versions where possible.

To perform SFC scan, follow the link below:

https://support.microsoft.com/en-us/kb/929833



Method 4:

Please try creating a new user profile and check.

Refer to the steps below to create a new User Account:

• Go to Settings.
• Choose Accounts and then select Other User Accounts towards the left.
• Go to Family & other users.
• On the right side select other users. Follow the on screen command.

Please refer the below link:

http://windows.microsoft.com/en-us/windows/create-user-account#create-user-account=windows-8



Keep us posted if you face any issues on windows in future. We will be glad to help you.