http://www.tomshardware.com/news/windows-1...t-os,29727.html

title; Rolling Back From Windows 10 To Your Older OS Appears Problematic


TLDR:

for upgraded version win 10, changes on some hardware required new purchase of win 10 copy..

any comment just plan to upgrade my win 7 to 10

did everybody here get notification to upgrade from day 1?...me waiting from last week still didn't show any notification..win 7 sp1 oem

just to add my exp upgrade win 10 from win 7 using ms compatibility driver..if u notice the windows slowing down especially during windows loading time then probably that the drivers actually not really compatible especially Audio and graphic...make sure u are install drivers from related manufactures.