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  • Report of KB 4038777 breaking activation on Dell machines

    Posted on September 18th, 2017 at 15:15 woody Comment on the AskWoody Lounge

    Anybody else see this with the September Win7 Monthly Rollup, KB 4038777?

    An email from reader AJ:

    I saw your article regarding KB4038777. We are having an issue when this update is installed where it breaks the windows activation on Dell machines. Seems to be happening only to Dell Windows 7 Professional machines. Dell says to reimage, awaiting assistance from Microsoft. Still troubleshooting, currently no fix. Has anyone else pinged you on this?

    UPDATE:

    We actually just figured it out. Apparently the update removed Dell’s OEM folder from System32, and upon reboot Windows couldn’t validate its license. Fix is to replace OEM folder with a known good, then run:

    Slmgr /upk

    Slmgr /ilc oem.xrm-ms

    Slmgr /ato