6/29/2023 0 Comments Windows service pack 2 windows 7HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MountMgr\NoAutoMount The current status of automount can be checked by looking at the following registry key. Windows 7 by default has the automount feature enabled. When Launching the Service Pack 1 installer again no issues were detected and installation could continue. When executing DISKPART the results were as following: Once rebooted I executed MOUNTVOL again and got the following result. In fact the 100MB sized System Partition was Offline.Īs per Microsoft’s recommendation I then executed MOUNTVOL /E which re-enables automatic mounting of new volumes and then rebooted the system. I than ran DISKPART and got the following result. Running the command MOUNTVOL /L showed the following result: Knowing my systems I could immediately exclude cause 2,3 and 4, so took a closer look at cause 1. Windows is running on a storage area network (SAN), and access to the system partition has been disabled.Ī disk management tool from another software manufacturer was used to copy (or clone) the disk or partition on which you’re trying to install SP1 The system partition isn’t automatically mounted, or made accessible to Windows, during startup.Ī hard disk containing the system partition was removed prior to beginning SP1 installation. When clicking on the Go online link Microsoft mentions the several reasons that could lead to this error. During the past days I have been manually updating a few Windows 7 clients and on two of them I received the error 0x800fa12.
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