Error Code: 800F0A12 (Can't install Win 7 SP1)

Anonymous
2011-02-23T03:51:00+00:00

Hello;

I am currently having installation  issues with SP1 for Windows 7 Ultimate 64 bit.

Code 800F0A12

Suggestions for resolving this issue would be appreciated.

Model : Intel(R) Core(TM)2 Quad CPU    Q6600  @ 2.40GHz

Total Memory : 6GB DIMM DDR2

 NVIDIA GeForce 8800 GT

Operating System:

Windows System : Microsoft Windows 7 Ultimate 6.01.7600

Platform Compliance : x64

Windows 7 Product ID: 00426-292-5120794-85762

Kind Regards;

Jason

additional details **error:**0X800f0a12

Windows for home | Previous Windows versions | Install and upgrade

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Anonymous
2011-02-23T09:13:03+00:00

If you are used another partitioner, like me, I used linux to get rid of that 100MByte windows partition, and installed linux next onto another HDD, I needed to pull of the cables from the linux HDD and then using only the Win7 HDD I can install Win7 SP1. I hope it's a solution for your problem.

If you still can't install it, or the linux is on the same drive, I think there's no solution. Only to re-partition the whole HDD and use Win7 partitioner.

I found this on: http://windows.microsoft.com/en-US/windows7/windows-7-windows-server-2008-r2-service-pack-1-sp1-installation-error-0x800F0A12

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Anonymous
2011-02-23T07:05:32+00:00

See...

Windows 7 and Windows Server 2008 R2 Service Pack 1 (SP1) installation error: 0x800F0A12

http://windows.microsoft.com/en-US/windows7/windows-7-windows-server-2008-r2-service-pack-1-sp1-installation-error-0x800F0A12

Windows 7/2008 R2 Service Pack 1 fails with 0x800f0a12

http://blogs.technet.com/b/joscon/archive/2011/02/17/windows-7-2008-r2-service-pack-1-fails-with-0x800f0a12.aspx

Fix: The Windows 7 partition must be the Active Partition.

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  1. Anonymous
    2011-11-30T11:18:32+00:00

    For dual OS's, or dual boot systems, there is another way to fix this:

    1. Boot with 3rd party partition editor and run partition editor
    2. Select/click on your Windows partition (for C:). Note the original "boot" partition so you can reset to it after installing win7 SP#. The "boot" flag can be seen on the far right column of the partition table when you run your partition editor.
    3. Make that partition a "boot" partition (one of the menu's functions will do this)
    4. Reboot your computer: the PC will boot directly to Windows
    5. Install Win7 SP#
    6. If you want, run partition editor again to revert to the dual boot config, by setting the original partition as "boot".

    Happy dual-booting.

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  2. Anonymous
    2011-03-06T04:37:45+00:00

    this error might occur if you have third-party bootloader (like GRUB).

    search Disk Management and run it.

    Find any partition which has 'system' flag, mark it as active. don't restart yet.

    remember to untick 'automatically restart' on the SP1 installer.

    before you restart, mark the previous partition or partition which has boot flag as active (in this case C).

    note: usually partition which has boot flag would have system flag too, but it might not be the case.

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  3. Anonymous
    2011-02-23T08:17:10+00:00

    I performed the automount command successfully.  Then restarted.  Verified automount was still enabled and got the error still.

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