changed my CPU and Motherboard and cant open Windows 7

[mohamedddo]

My friend i changed My CPU and Motherboard today of my PC my i have 2 operation system on my Hard Disk the first Windows 7 and the second Windows 8 and now after i connected the new Parts to my hard disk i cant open my Windows 7 as every time i chose Windows 7 then loading and restart however i can normal open Windows 8 normal

 

[emdea22]

Windows needs to be reinstalled when changing motherboard or sometimes even when only changing the cpu.

 

[saint19]

Different parts...different drivers. You need to do a clean Windows 7 install.