Win7 Startup Repair error: Missing boot mgr

Self built / Asus a7v8x
January 23, 2010 at 19:37:00
Specs: Windows 7, 0.512gb
The computer has two hdd's. One drive is 500GB and 3 partitions. The other hdd is 40GB with no partitions.

Went through the system recovery options including system repair and got message that Startup Repair cannot repair this computer automatically. Missing Boot Manager.

Was running fine until yesterday.

Have 3 partitions, one with Win 7, one with Win XP, and a Data partition. The boot CD can't read the partitions as it shows only the 40 GB drive (other hdd) on system.


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#1
January 24, 2010 at 09:09:47
Make sure the BIOS is showing the right disk drive as the primary boot device. If you have that verified, run fixboot & fixmbr to repair your bootloader.

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#2
January 26, 2010 at 07:55:44
Sabertooth, I haven't done what you suggested yet because after booting to the win xp partition and running it for awhile, it slowed down like 1 min to open an .exe. I shut it down and in doing so, I received a memory read dialog error. Presently I am waiting for a 1 GB stick to try out. I am beginning to think that maybe the WD 500GB SATA2 hdd is failing. So when I get the memory in and reboot, it will be to the Seagate IDE 40GB drive which is a backup hdd. I will followup this discussion with my findings.

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#3
February 4, 2010 at 12:28:27
The dos screen shows x:\ as the drive. I ran bootrec /fixboot and /fixmbr. It ran alright for both. I still can't boot to win7 so I think I will format the partition and reinstall. I'll wait though in case someone has some other suggestions to repair the o/s.

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#4
February 4, 2010 at 14:13:33
I guess I should have asked if both of your drives are detected in the BIOS & specifically, if the 500GB drive is listed in there as the primary boot device. I believe this might be the reason you are unable to boot from it or repair the bootloader. If it's not detected -- in the BIOS or not listed as the 1st boot device, then you aren't going to be able to boot your machine no matter what you do.

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#5
February 4, 2010 at 16:59:28
Yes, the 500GB drive is the primary boot drive in BIOS.

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#6
February 7, 2010 at 19:41:12
Have you tried utility programs to test your RAM and your hard drives from outside windows?

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