| Created date | Updated date | Affects version | Fix version |
|---|---|---|---|
| Blancco PreInstall version < 2.8.1 | 2.8.1 |
Problem
Windows Update ends up in error "0x80073B92 - 0x20009; The installation failed in the SAFE_OS phase with an error during PREPARE_ROLLBACK operation" if Blancco PreInstall.exe has been run in the system before starting the update.
This problem may only impact Blancco PreInstall users who makes use of "--no_restore" option for keeping Blancco entry in boot menu.
Cause
An EFI system partition PreInstall.exe has created causes some error while Windows Update process doing partition analysis and validation.
Solution
- Uninstall Blancco PreInstall to remove the EFI system partition.
- Run Windows Update.
- Install Blancco PreInstall installation package.
- Run BlanccoPreinstall.exe to create the EFI system partition again.