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SPAPI_E_NO_BACKUP
SPAPI_E_NO_BACKUP (0x800F0103) is a Windows SetupAPI driver-installation error. This code means SetupAPI has no backup set for the files changed by the installation queue. A later uninstall or rollback cannot rely on SetupAPI to restore the previous files automatically.
What to check
- Identify the exact driver package and device installation that made the changes in
%windir%\INF\setupapi.dev.log. - Keep a known-good vendor package or export the current third-party package before replacing it.
- Do not treat this as a reason to delete driver files manually from the Driver Store.
Microsoft: SetupAPI device installation log
Microsoft: PnPUtil command syntax
Microsoft: Uninstall devices and driver packages
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