“TMGR is Missing” after repair-installing Windows XP

Question

I have two OSes installed in my computer. - Windows XP Professional - Windows 7 Ultimate (Release Candidate 1/Build 7100)

I used the Windows 7 boot loader by default to choose between OSes.

When I was using my WinXP, my computer gets lagged suddenly and continuously, and the only way to fix it is by repair-installing it (because I've experienced this many times before, but without W7 installed).

Everything goes OK. But when my XP was successfully reinstalled, I cannot boot my Windows 7 anymore. Every time I tried to boot the harddisk that contains W7, an error appeared. "TMGR is Missing".

Now I have no idea how can I get back to my Windows 7.

Any kind of help would be appreciated! :)

Answer 1

Sounds like the BootLoader from Win7 is gone...I haven't used Win7 but, does it have a Repair Console (from DVD) like XP? If yes, you could try to fix the MBR from there (Keyword: fixmbr). At least that would give you Win7 back, but you'll most likely will still have to restore the bootloader yourself.

Answer 2

maybe this could help you: http://www.ehow.com/how%5F4836283%5Frepair-mbr-windows.html