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Windows 7: Need help starting Windows 7 on boot up.

29 Apr 2010   #51


Did you boot the Win7 DVD, select Repair My Computer on second screen, then see if it finds an installation to repair, or offers up a repair?

If that repair doesn't work, then boot back in to Repair and click through to Recovery Tools list to run Startup Repair repeatedly with reboots to attempt to repair or rewrite the MBR to Win7 System Reserved boot partition which holds the active MBR.

If this will not start Win7, then I have one more suggestion:. Since the MBR appears to be corrupted by GRUB, and is isolated on the 100mb System Reserved partition, then you can boot the PW CD, right click 100mb partition, select Wipe Partition for deepest possible clean., OK.

You can also then rightclick>Resize Win7 into that 100mb space, sliding the left Win7 border all the way to the left, OK.

Next rightclick Win7 to Modify>Mark Active, OK, Apply all steps.

Now rewrite the MBR into Win7 without any GRUB corruption. Boot Win7 DVD, select Repair, click through to Recovery Tools list to run Startup Repair up to 3 separate times with reboots to write MBR to Win7.

My System SpecsSystem Spec
29 Apr 2010   #52


Just sent you an answer to your PM. Thanks Gregrocker for the help, this forum is a great one I direct people here as well, if the geeks are not on line at the UF. I hope that isn't where all the people are coming from that are having problems in this area. For me this is a community effort to help each other if possible.
My System SpecsSystem Spec
29 Apr 2010   #53

W7, Xp Pro

Hi, i just had the same hassle. Finally d'ld >

Parted Magic 4.10

Make backup of c: only, not mbr.

boot from cd/dvd and don't mount any partitons and simply delete c:, format and then delete again.

Restore backup.
My System SpecsSystem Spec

30 Apr 2010   #54

windows 7 64 bit

I have been able to get this resolved over at Thanks to all that gave me any suggestions. I really appreciate all the assistance I received here.

thread closed
My System SpecsSystem Spec
30 Apr 2010   #55


So that you all know this was fixed with the instructions I tried to give here. The auto-repair I think gets thrown off with another bootloader like grub being there but if you run these commands it will reload the MS boot-loader. So you all might want to consider that the auto-repair works okay as long as everything is MS, but when another bootloader has been added to the MBR you have to use the command line to fix it. No deep cleaning needed.

Repairing the MBR. as described by kittyhawk63

Here are the steps that I took:
1) Boot with your Vista/Windows 7 installation disk. Hit <Enter> at the language selection prompt then hit <R> for Repair to get to the Repair section.
2) Select the command prompt (console) and type in the following commands:
BootRec.exe /fixmbr (#updates MBR master boot not run if you still want grub)
chkdsk /r
BootRec.exe /FixBoot (#updates PBR partition boot)
BootRec.exe /ScanOs
BootRec.exe /RebuildBcd

To give everybody credit this forum thread was a great help to understand how to get to the command terminal, this was a group effort by both forums.
MBR - Restore Windows 7 Master Boot Record

My System SpecsSystem Spec

 Need help starting Windows 7 on boot up.

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