How to Replace Motherboard without Reinstalling Windows / Fix Windows cannot boot after replace motherboard. (換底板不用從新安裝Windows)

How to Replace Motherboard without Reinstalling Windows 

Windows 7

(轉載自): https://www.wintips.org/how-to-replace-motherboard-without-re-installing-windows/

1.Run “regedit” and press Enter.

2. Inside Windows Registry, navigate (from the left pane) to this key: 

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\msahci

* Note: If you have Window 8, Windows 10 & Server 2012, then navigate to the “StorAHCI” key

(e.g. : “HKEY_LOCAL_MACHINE\Repair\ControlSet001\services\storahci”) , because in these Operating Systems the MSAHCI has been replaced by StorAHCI.

3. At the right pane double click at 'Start' DWORD value and change its value data to 0 (zero). Click OK when finish.

4. Now perform the same modification to this key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\pciide

5. At the right pane double click at 'Start' DWORD value and change its value data to 0 (zero). Click OK when finish.

6. If you use RAID  (otherwise ignore this step) then you have to perform the same modification to this key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStorV

7. Close Registry editor.

Windows XP

Use boot disk or Windows PE boot up and go to your Windows root folder
rename c:\windows\system32\config\system to system.old
copy c:\windows\repair\system to c:\windows\system32\config\ folder
reboot