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Windows 7: Set blank partition to active primary on accident, now won't boot.

07 Jun 2012   #1
Caseycallender

Dual boot win 7 and xp
 
 
Set blank partition to active primary on accident, now won't boot.

I just bought a cheap laptop from Walmart yesterday with windows 7. I am not a fan of it so I wanted to see if I could dual boot windows xp. Luckly it is a IDE machine not sata. So I Downloaded a copy of windows xp (I have a license key for all the people who would shun me for it, it is paid for). Well when I was making a new partition to install windows xp on I set the new partition to active, rebooted and wala, my computer won't boot because I'm a bone head sometimes. I have access to another windows 7 comp that is Extremly slow and I put emphasis on Extremly. What is the quickest most direct path I can take to get my comp booting again. Other comp has a cd burner and I have an external hd if I need it.


My System SpecsSystem Spec
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07 Jun 2012   #2
SIW2

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64
 
 

Obviously, you need to move the Active flag back to the original volume.

You can do that if you attach your other comp to it so you can see the volume - then use disk mgmt or diskpart, or any partition manager to do the job.

Otherwise, you will need to get something that you can boot on your sick comp - PW free cd is pretty good.

Partition Wizard Bootable CD allows user to manage partition directly with partition manager bootable CD.
My System SpecsSystem Spec
07 Jun 2012   #3
Thorsen

Win7 Home Premium 64x
 
 

The computer should, if it didn't come with any disks, have a recovery partition set up.
So, First try to get to the Advanced Options Menu: http://www.sevenforums.com/tutorials/666-advanced-boot-options.html

If you can't get to anything there, you will need a boot disk to launch the Windows 7 recovery options:

> If you have another computer with Win7 then you can create a System Recovery disk: http://www.sevenforums.com/tutorials/2083-system-repair-disc-create.html

> if you don't have access to a win7 computer, but can create a disk on another, you can download a copy of win7 and go through the steps to repair from that disk: http://www.sevenforums.com/tutorials/219487-clean-reinstall-factory-oem-windows-7-a.html


From those, you can run the Startup Repair.

Or use the C Prompt to reset the Original Partition to active: http://www.sevenforums.com/tutorials/71432-partition-mark-active.html

Hope this helps
My System SpecsSystem Spec
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07 Jun 2012   #4
Caseycallender

Dual boot win 7 and xp
 
 

Thanks Thorsen and SIW. The bootable CD partition wizard is what im looking for sounds like.
My System SpecsSystem Spec
07 Jun 2012   #5
gregrocker
Microsoft MVP

 
 

If you're going to install XP then Win7 will lose the boot anyway, until you repair it to start 7 up to add XP to a Dual Boot menu. So you might as well install XP to a partition your shrink using Partition Wizard CD first.

Follow the steps in Option Two here: Dual Boot Installation with Windows 7 and XP

If this fails use PW CD to mark Win7 Active, then from the Win7 DVD or Repair CD run Startup Repair - Run 3 Separate Times. You can download the Win7 DVD official ISO and burn to DVD using steps 1 and 2 here.
My System SpecsSystem Spec
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 Set blank partition to active primary on accident, now won't boot.




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