Hello guys and girls,
I got a client who has left some Windows 7 PCs without upgrading them due to some reason. After his finding I confirmed that Microsoft still let free upgrade for Windows 7 genuine PC. So, I have been upgrading Windows 7 Pro PCs and laptops to Windows 10 Pro. But I have 2 laptops that just refuse to upgrade…and that’s after taking about 3 hours to go through the download and install only to end with a message saying that’s it’s undoing the upgrade.
I’ve seen this message a couple of times as well:
0x80070005 - 0x2000A
The installation failed in the SAFE_OS phase with an error during PREPARE-FIRST_BOOT operation.
So I tried searching for the error. Found at least 10 “solutions” but no one seemed able to confirm that any of them actually worked. I did try disabling anti-virus and making sure Windows 7 was completely updated but of course, that didn’t help (it didn’t matter on other successfully upgraded machines).
Has anyone else had this problem and found an actual solution?
