MBR - Restore Windows 7 Master Boot Record

iseeuu said:

jaymac10 said:

OK got some more info...

I figured out that my D: drive is the partition with Windows 7 installed on it.

When I went in and did a "bootsect/nt60 all" I got the following error message regarding the D: Drive

"Update may be unrealiable since the volume could not be locked during update. Access is denied"

WTF does that mean? and how do I fix it?

Thanks,
Jay

Good afternoon, Jay!

I would recommend to you to try a "repair install" from the 7 DVD: System Recovery Options

Follow this tutorial ... take note that step 5 says "If Windows 7 is not listed here, or it is blank, then it is ok. Click on Next anyway." Then do the "startup repair." Please let us know if this restores access to your Windows 7?

Cheers!

Thanks, however, I'm pretty sure I have already done this process. And it did not work!

I'll maybe try running it again with all my other hard drives disconnected and see if that does anything...

Jay

jaymac10 said:

Thanks, however, I'm pretty sure I have already done this process. And it did not work!

I'll maybe try running it again with all my other hard drives disconnected and see if that does anything...

Jay

Yes, please try with the Windows 7 hard drive connected and let us know?

Ok so I diconnected all of my other hard drives so only the one with W7 was on.

Went through the process of startup repair and got the following details:

Root Cause Found: The Partition Table does not have a valid system partition.
Repair Action: Partition Table Repair
Result: Completed Sucessfully Error Code = 0x0

If I attach my other HDD with XP (what I'm on now) I can go into disk management and see my Windows 7 partition. It says it's "Healthy"

Ideas on how to fix??

Thanks,

Jay

jaymac10 said:

Ok so I diconnected all of my other hard drives so only the one with W7 was on.

Went through the process of startup repair and got the following details:

Root Cause Found: The Partition Table does not have a valid system partition.

Repair Action: Partition Table Repair
Result: Completed Sucessfully
Error Code = 0x0

OK ... so did the partition table get repaired and are you able to boot to Windows 7?

.

iseeuu said:

jaymac10 said:

Ok so I diconnected all of my other hard drives so only the one with W7 was on.

Went through the process of startup repair and got the following details:

Root Cause Found: The Partition Table does not have a valid system partition.

Repair Action: Partition Table Repair
Result: Completed Sucessfully
Error Code = 0x0

OK ... so did the partition table get repaired and are you able to boot to Windows 7?

.

I removed the W7 install disk... restarted... get Boot Failure...

I also did a C:bootsec /fixmbr and it said it completed successfully....

I could not however, do a /bootfix. Said (something) could not be found???

Also tried a /rebuildbcd. It was thinking for a while and then came up with a bunch of stuff but can't remember if it worked...



Still get boot failure at startup...

iseeuu said:

jaymac10 said:

Ok so I diconnected all of my other hard drives so only the one with W7 was on.

Went through the process of startup repair and got the following details:

Root Cause Found: The Partition Table does not have a valid system partition.

Repair Action: Partition Table Repair
Result: Completed Sucessfully
Error Code = 0x0

OK ... so did the partition table get repaired and are you able to boot to Windows 7?

.

I attach my other HDD with XP (what I'm on now) I can go into disk management and see my Windows 7 partition. It says it's "Healthy"

Is there a way that I can fix/repair the boot directory or the install of Windows 7, or partition while I'm on my other HDD??

That would be really nice if I could just copy and paste new files into the Windows 7 partition....

Possible??

jaymac10 said:

I also did a C:bootsec /fixmbr and it said it completed successfully....

I could not however, do a /bootfix. Said (something) could not be found???

Also tried a /rebuildbcd. It was thinking for a while and then came up with a bunch of stuff but can't remember if it worked...



Still get boot failure at startup...

Before you proceed, lets consider your options. I re-read your initial post and can not see how booting to your XP hard drive would damage your 7 partition table. Doesn't mean it couldn't happen, just I don't see how.

Damage to the partition table could be the result of defects in the hard drive platter in the area where the partition table resides, so it might save a lot of effort to verify the hard drive is, or is not the cause. I would suggest to you to go the manufacturer's web site and get a copy of their diagnostic software and check the physicial condition of the hard drive before continuing. A few defects does not mean the hard drive will need to be replaced, but the surface of a platter failing will continue to cause corrupted data. You need to know!

If the diagnostic software can adequately repair (block off the failing area so no data can be stored there) the hard drive, then we may be able to repair the MBR / partition table and resume using it. If not, you should be able to RMA the drive.

In the mean time, one option you might consider is to install 7 in a separate partition on one of your other drives. If you do, I suggest shrinking the XP partition, moving it to the "end" (right) of the hard drive and installing 7 including its 100 MB system partition. With a working 7 OS you may be able to rescue your files and settings from the damaged drive, maybe ...

If no defects are found in the 7 hard drive, or if it can be repaired (as mentioned above) the tutorial referes to this MS site where you can use the command:

bootrec (not bootsec, as you posted)

"The /FixBoot option writes a new boot sector to the system partition by using a boot sector that is compatible with Windows Vista or Windows 7. Use this option if one of the following conditions is true:

• The boot sector has been replaced with a non-standard Windows Vista or Windows 7 boot sector.
• The boot sector is damaged.
• An earlier Windows operating system has been installed after Windows Vista or Windows 7 was installed. In this scenario, the computer starts by using Windows NT Loader (NTLDR) instead of Windows Boot Manager (Bootmgr.exe)."

Please consider your options and let us know if we may assist?

Cheers!

iseeuu said:

Before you proceed, lets consider your options. I re-read your initial post and can not see how booting to your XP hard drive would damage your 7 partition table. Doesn't mean it couldn't happen, just I don't see how.

The boot of W7 got messed up when I was playing around in the BIOS settings trying to overclock my CPU.

I re-set the BIOS to "standard" settings, then re-started my computer.

However, I did not change the disk order before doing that.

When the computer re-started, it booted to my XP drive as it was listed first.

So I went back into BIOS, changed it to my W7 disk, and re-started.

That's when the problems started.

I originally got an "NTDLR is missing" error.

In my efforts to fix the problem, it wasn't giving me the NTDLR error anymore, just a "Boot Failure".... Which is what it's still giving me...

I've already transfered over all of my "data" on the Windows 7 partition as I am able to access it in Disk Management when running my XP drive....



SO I'm probably just going to re-format the hard drive, then re-install Windows 7 and be done with this CRAP!

But I do thank everyone for their help! But I'm not sure I can fix it any faster than just re-installing!