Recently Windows 7 Service Pack 1 was released, but the installation fails with 800F0A12
error on my PC. According to the official help, this error means that the system partition cannot be accessed by the installer and updating files failed. The help offers a solution using mountvol command, but this didn't help me.
After a few tries, I got the thought that the dual-boot system with Windows and openSUSE on my PC confuses the Service Pack installer. I solved the installation problem with the following steps requiring the administrator log-on.
- Open the Control Panel > System and Security > Administrative Tools > Computer Management > Storage > Disk Management window.
- Right-click the Windows boot partition and click Change Drive Letter and Paths.
- Click Add and select the drive letter A (or any letter you want to use).
- Click OK twice to mount.
- Since the partition in which Grub is installed was active, activating the Windows boot partition might be required for the successful installation.
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