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Vista 64 Ultimate service pack 2 error code 0x8007020

When I try and install Vista SP2 I get error code Ox8007020.  The knowledge base and forums are vague about this error except is involves a file sharing violation.  I have tried Windows update, the stand alone download, uninstalled all virus programs (McAfee) and non window's firewall, turned off win defender, Safe boot, Clean Boot, readness tool and fix it, reset window update and the file integrity checker.  I am quickly running out of options other than a wipe and fresh install.  Would anyone know of a way to track down the offending program or process?           

Hi,

I would suggest you to follow the steps from the below link and check if it helps:

http://support.microsoft.com/kb/947366

Azam – Microsoft Support.
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Thanks Azam.  I am sorry the correct error code is 0x80070020.  I have tried all options suggested in KB947366 with no improvement.  Is it even possible to repair this error without a clean reinstall?

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Last updated April 1, 2021 Views 676 Applies to: