Windows 10 Windows 10 Startup Loop

specteresawy

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May 13, 2018
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when starting up windows it goes into batch operation then prints out error code 400d, ERR_READ_DISK_UUID and I'm stuck in this loop, tried bootrec /fixmbr, fixboot, rebuildbcd tried recovery essentials pro win 10 and hirens boot cd and windows 10 repair all failed I have access now only to command prompt and registery editor in windows repair, Is there any way to cancel or stop this batch process !!?
 
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I just had this exact problem from another partition managing software. I did eventually find a solution after much hair pulling and digging through the registry while booted from alternate media. So, I'm leaving this for the next unlucky soul...

The software had modified HKLM\SYSTEM\ControlSet001\Control\Session Manager\BootExecute in the registry to run a program they had installed in system32.

Since I only had read only access to the registry, I renamed the offending program in system32, and then the system was able to boot. Then I was able to fix the key, which should be just "autocheck autochk *" in my case.
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No…but after inserting the recovery USB disk, it didn’t ask for a password again, so was able to click “repair computer” and then “system restore,” but then at the login screen, the screen started flickering and saying “video failure.” I thought I was screwed for sure, so tried the complete reinstall and it worked. All my files we sure enough in the “windows old.” And no video problems…in fact, playing resident evil 4 on it now. But yeah, the program that initially screwed everything up was “magic partition” so just a heads up…tried to delete any trace of them from the registry.
 
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