I faced a problem while creating a backup using an external hard drive on Windows 10. I disabled the Windows Defender and started VSS, but I encountered the 0x807800a1 error. How can I fix the error?
How Can I Fix The 0x807800a1 Error In Windows 10?
You did a good job by enabling VSS and disabling the Windows Defender. Further, to solve the 0x807800a1, you need to start the Workstation service.
a. Press Windows + R on your keyboard.
b. Type services.msc, and press enter.
c. Double-click on the Workstation service.
d. Set the startup type to automatic.
e. Start the service.
f. Try the backup.
If you have Microsoft Starter 2010, un-install it.
a. Press Windows + R on the keyboard.
b. Type appwiz.cpl, and press enter.
c. Click on Microsoft Office Starter 2010.
d. Click on Uninstall.
e. Complete the process.
f. Try the backup.