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Windows 7: Reinstallation

07 Dec 2009   #1

Windows 7

I messed up in the partition. Meant to make a 10GB separate partition for me to dump things in and it made it the primary partition. How do I simply reinstall over the previous Windows 7? Can I? It's not letting me boot from the disk. I'd much rather do that then have to get a third party software and separate it out myself.

My System SpecsSystem Spec

07 Dec 2009   #2
Microsoft MVP


You can have more than one Primary partition. Are you saying you installed Windows 7 on the 10gb partition by mistake?

Go into Disk Management and post a screenshot of the drive map so we can advise you, using the Snipping Tool on the Start Menu, attaching file using Paper clip in reply box.

Chances are you can click on the partition and Extend it to the right. If there is something blocking that, then delete it so you can extend your Windows 7 partition as far as you want.

Otherwise, boot into the Windows 7 DVD, choose Custom install, Advanced Drive tools and delete all of the partitions, create partition(s) you want carefully this time, and make sure the partition you want to install Windows 7 is the one highlighted when you click Install.
My System SpecsSystem Spec
07 Dec 2009   #3

Windows 7

This is going to sound retarded, but it's almost 5am so please bear with me. How do I boot from the DVD? Every time I try it simply starts normally.
My System SpecsSystem Spec

07 Dec 2009   #4

Windows 7 Ultimate x64

not retarded at all.

When your PC first starts, press del, F2 etc, to enter the BIOS, you then need to change the boot order to CD/DVD - HDD - xxx - xxx

It's probably set up at the minute like;

HDD - CD/DVD - xxx - xxx
My System SpecsSystem Spec
07 Dec 2009   #5

Windows 7

And the computer gods smiled up thee. It's working. No more half-drunken installations on new rigs. Never again. Now all I need to do is figure out how to get my case's power switch to start working properly.

Anyway, thanks guys. I'll be on my way, if you read about a college student lighting up like a Christmas tree after starting his computer with a screwdriver, think of me and smile.
My System SpecsSystem Spec
07 Dec 2009   #6
Microsoft MVP


The little plastic switch behind the power button will not bite you if you just stab it gently with your finger. Some people do it for years.
My System SpecsSystem Spec


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