How to Fix 0x80780166 Error when Backing up Windows 10?

If you’re seeing the 0x80780166 error when you try to back up your Windows 10 PC, don’t worry. This is a common error that can usually be fixed with a few simple steps. In this article, we’ll show you how to fix the 0x80780166 error so you can successfully back up your Windows 10 PC.

How to Fix 0x80780166 Error when Backing up Windows 10?

What is 0x80780166 Error?

0x80780166 error is a Windows 10 backup error. This error can occur when you are backing up your Windows 10 computer to an external hard drive or other storage device. This error can also occur if there is not enough free space on the external hard drive or other storage device.

There are a few things that you can do to fix this error. First, you can try to free up some space on the external hard drive or other storage device. You can do this by deleting any unnecessary files or by moving files to a different location.

You can also try to format the external hard drive or other storage device. This will erase all the data on the drive, so make sure that you have a backup of the data before you format the drive.

If neither of these solutions work, you can try to contact Microsoft support for help.

How to Fix 0x80780166 Error?

If you’re seeing the 0x80780166 error when trying to backup your Windows 10 PC, it’s likely due to a problem with your system’s Volume Shadow Copy service. This service is responsible for creating snapshots of your system’s data so that it can be backed up.

There are a few things you can try to fix this error:

First, make sure that the Volume Shadow Copy service is running. To do this, open the Services control panel and look for the service. If it’s not running, start it and set it to start automatically.

Next, try restarting the service. Open the Services control panel, right-click on the Volume Shadow Copy service, and select Restart.

If neither of those options work, you can try rebuilding the Volume Shadow Copy database. This database stores information about the snapshots that are taken. To rebuild it, open an elevated Command Prompt and type:

vssadmin delete shadows /all

This will delete all existing snapshots. Once they’re all deleted, you can restart the Volume Shadow Copy service and it will recreate the database.

If you’re still seeing the 0x80780166 error, it’s possible that there’s a problem with your hard drive. Try running a disk check to see if there are any errors. To do this, open the Command Prompt and type:

chkdsk /f

This will scan your hard drive for errors and attempt to fix them.

Conclusion

If you encounter the 0x80780166 error when backing up Windows 10, there are a few potential solutions you can try. Restarting your computer and running the backup again may resolve the issue. If that doesn’t work, try changing the backup destination to a different drive or network location. You can also try performing a clean boot of Windows 10, which may help to fix the problem. If none of these solutions work, you may need to reinstall Windows 10.

Resources

If you’re encountering the 0x80780166 error when backing up Windows 10, there are a few possible explanations. One possibility is that your backup destination is full. To check this, open the Backup and Restore window and click on the “Change Settings” button. In the window that opens, check the “Back up system files to the recovery drive” option. If it’s checked, uncheck it and click “OK” to save the changes.

Another possibility is that your backup is corrupted. To fix this, open the Backup and Restore window and click on the “Restore my files” button. In the window that opens, select the “Use the latest available system image” option and click “Next”. Follow the prompts to complete the restore process.

If neither of these solutions works, you may need to perform a clean install of Windows 10.