I have two hard drives :
1. 320GB Windows 7 pro OEM
2. 500GB clone of (1) upgraded to Windows 10 pro 1511.
I cloned my Windows 7 pro OEM hard disk and upgraded the clone to Windows 10 pro 1511. Activation was successful (Digital Entitlement).
My question is, will the upgrade invalidate the original (320GB) Windows 7 OEM product key after the one month period to go back to Windows 7 ends ?
The upgrade to Windows 10 had various problems : disk management "unable to connect to virtual disk service", Windows Defender update stuck at 50% for hours, usb internet modem software had to be re-installed each time it was disconnected etc so after hours of trying to repair Windows 10, I swapped the hard drives and went back to Windows 7.
In other words, can I continue to use the original OEM hard drive without problems ?
Edited by hamluis, 21 August 2016 - 10:05 AM.
Moved from Windows 7 to Windows 10 Discussion - Hamluis.