Windows 10: File History will not back up files to my external drive. Error 8100002F.

Hello,I am using Windows 10.At the beginning of January of this year 2024, I switched to a larger external drive to back up my files with File History, as I have successfully done for decades.From my first try to back up my files with File History, it backed up many folders except my documents and pictures, the most important things that I need backed up.Microsoft techs took control of my computer on January 2nd , 3rd, and 4th for over 10 hours total to no avail.On January 3rd, the last thing that the tech did was download a new version of Windows 10 and assured me tha

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How to stop File History on the old drive and start File History on a new drive?

I use the external drive
for File History and have a lot of information there. I want to restart the File History process on a new drive and place the previous File History drive off-site.

Please suggest the steps to stop File History on the old drive and start File History on a new drive.

 

File History drive

Hi Joseph,

Thank you for contacting Microsoft Community.

I would like to inform you that if your File History drive has been disconnected for too long, or it doesn't have enough space to save temporary versions of your files. To continue saving copies of your files, you'll need to reconnect your File History drive.
Plug in your external File History drive or reselect your network. You can start a backup manually or wait for the next scheduled backup or reselect the drive. Here is the steps:

To manually start a backup

• 
  Open File History by pressing Windows key> type File History
  > Click on File History.
  
• 
  Tap or click Back up now.
  

To reselect your drive

• 
  Open File History by pressing Windows key> type File History
  > Click on File History.
  
• 
  Tap or click Select drive.
  
• 
  On the Select a File History drive page, tap or click your current drive or network location, and then tap or click
  OK.
  

Hope it helps. Let us know if you need more help and we'll be glad to assist.

 

File History is off and won't recognize my external drive

Hi,



Thank you for posting your query in Microsoft Community. Let me help you.

• 
  Have you made any changes in settings prior to the issue?
  
• 
  What is the status when you connect your external driver in your system?
  
• 
  Have you checked with a different external drive? What is the status?
  
• 
  Have you tried connecting the drive in a different USB port? What is the status?
  

I suggest you to disable your third party-software (If any) and check if it resolves the issue.

Important Note: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you shouldn't disable your antivirus software. If you have to temporarily disable it to install
other software, you should re-enable it as soon as you're done. If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.

Check if it helps.



You can also try turning on file history by following the below procedure and check if it resolves the issue.

To enable file history on Windows 10, connect an external hard drive and follow the steps below:

• 
  Open Start menu and type
  File History
  
• 
  Click File History (control panel)
  
• 
  Tap or click Select a drive, and choose the network or external drive you want to use.
  
• 
  Turn on File History
  

Note: If the network drive you want isn’t in the list of available drives, tap or click Show all network locations. If the drive you want isn’t listed there either, open File History in Control Panel, tap or click Add
a network location, and follow the instructions on the screen.

Please reply with the details and updated status of the issue. We will be happy to assist you further.