Solve 0x800F0A12 when installing Win7 system

  
 

If you receive an error message "Windows
7 or Windows
Server 2008 R2 SP1", it means that the installer cannot access the system partition on the hard disk. As a result, the file cannot be upgraded, so the SP1 upgrade fails. Usually, the Windows
can access the partition (although you can't find the partition in the Explorer), but in some cases, Windows
The system partition will be inaccessible after booting. The solution is very simple to see the following operation!

Operation steps

Run “DISKPART”, type “automount enable”.



Restart computer
upon completion.



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