You may have two issues. The first one being the HD drive that you installed in "
another machine". Is that hard drive being used as the bootable "C" drive or is it a data drive, as in drive "D"?
C: drive scenario - Will it fully boot into Windows? I assume not, since you mention "
safe mode". If that is the case, you will need to try to figure out what is wrong and search the web for how to do a system restore. Should you do a system re-install, I anticipate that you still may have to re-install all programs.
D: drive scenario - In that situation, you will need to remove all system files from the hard drive and re-install your programs from the original CDs.
Please note, that I have
not moved a "C" drive to another computer as a bootable "C" drive. In fact, on my computer, an updated BIOS caused Windows 7 to crash. So changing motherboards, will result in a different BIOS.
You may want to look at this website:
The Elder Geek
Below is one link that may be helpful. Personally, I think that the recovery counsel is a waste of time. But it is a start that can lead to other webpages.
How to install and use the Recovery Console in Windows XP
Below is a u-tube video. I do
NOT know if it is any good. At least it is a start to further research.
Windows Repair: How to repair your Windows XP PC with your Boot-Disc