Windows 10: Windows 10 could not install revert back to Windows 7 failed

Has anyone else experienced the following?

My Windows 7 was updating to Windows 10. When it appeared to almost be done configuring a message appeared stating the Windows 10 could not be installed and it was restoring the previous version of Windows.

Well that did not work. The pc will not boot up now. Instead I get: "Windows could not start because the following file is missing or corrupt: <windows root>\system32\hal.dll Please reinstall a copy of the above file"*Mad

I hope I can add the file using the win7 dvd. I know I was getting low on hard drive space, but had cleared enough to have 4 gig or so free. It was either not mentioned anywhere or I missed how much hd space would be needed. Of course I am assuming that the install bombed due to this?

:)

 

Can I revert back to Windows 7 later than 30 days after Upgrading to Windows 10?

If I decided that Windows 10 was not for me, right now - but probably would be later.

Say because I had problems that I could not overcome myself and I failed to get help etc.

• Will Microsoft allow me to revert back to Windows 7 or 8 even after the 30 days of grace stated?
• If after reverting back to Windows 7 or 8, can I re-upgrade to Windows 10 before 29th July 2016?
• Would I have to re-reserve my copy of Windows 10 and use the update/DVD/USB install?

Thanks,

 

Windows 10 install error

hello there.

after trying to install Windows 10 through windows media creation tool on Windows 7, computer restarted, and was upgrading. it gets to copying files 65% then restarts. It than says reverting back to previous version of Windows. In Windows 7 after reverting
back, a box came up saying "0x8007002C-0x2000D the installation failed in the SAFE_OS phase with an error during MIGRATE_DATA operation". What's going on here?

Thank you.

 

System Requirements for Win 10 (According to MS)

Processor: 1 gigahertz (GHz) or faster processor or SoC
RAM: 1 gigabyte (GB) for 32-bit or 2 GB for 64-bit
Hard disk space: 16 GB for 32-bit OS 20 GB for 64-bit OS
Graphics card: DirectX 9 or later with WDDM 1.0 driver
Display: 800x600