so when i start my comp i get boot mgr missing ,do i reformat or is there an easier way
Yes, there's an easier way:
A) Boot from a Windows disk (whichever Windows version you have).
B) Once there, click on Install, then once the next screen appears, look at the bottom left, in small blue letters, click on "Repair".
C) Once open, if something starts automatically, cancel it, and click on "Advanced Repair Tools" or something of the like.
D) Open a command prompt (last option) and do the following:
1) Type
diskpart and hit enter
2) Once open, type
list volumes and hit enter
3) Identify your Windows Hard-drive in the list and type
select volume x and hit enter ; where x is the number of your Windows hard-drive
4) Type
list disk and hit enter
5) Type
select disk x and hit enter ; where x is the number of Windows hard-drive (sounds redundant to the previous step, but it's not)
6) Type
select partition 1 and hit enter (it's always 1, so use 1)
7) Type
active and hit enter
8) Type
exit and hit enter
9) Close everything and reboot off the hard-drive - ensure you remove the dvd. You're now good to go :)
Let me know if you have any questions.