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Windows 7: Dual Boot - Delete a OS

27 Jan 2012   #9
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 
Dual Boot - Delete a OS

How to Properly Delete a OS in a Dual Boot



My System SpecsSystem Spec
29 Aug 2012   #10
LittleJay

Windows 7 Home Premium 64bit SP 1
 
 

Thanks for another good tutorial WHS! EasyBCD is most definitely a handle tool to have on hand.

My System SpecsSystem Spec
29 Aug 2012   #11
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

You are welcome
My System SpecsSystem Spec
29 Aug 2012   #12
mz7thc

Windows 8 pro
 
 

I used EasyBCD as described in step 1
My System SpecsSystem Spec
31 Aug 2012   #13
mz7thc

Windows 8 pro
 
 

Just noticed when I unplug a disk which is not related to Windows (e.g. MyDocuments), Bios is still pointing to the right boot disk, I get also an read error and Windows does not start. That means if I have to change my disks at some stage, Windows won't boot anymore...
My System SpecsSystem Spec
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31 Aug 2012   #14
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Quote   Quote: Originally Posted by mz7thc View Post
Just noticed when I unplug a disk which is not related to Windows (e.g. MyDocuments), Bios is still pointing to the right boot disk, I get also an read error and Windows does not start. That means if I have to change my disks at some stage, Windows won't boot anymore...
It is possible that the bootmgr is on the wrong disk. Post a full picture of your Disk Management and we'll have a look.
My System SpecsSystem Spec
31 Aug 2012   #15
mz7thc

Windows 8 pro
 
 

That's an interesting thought! How can I find out where the bootmgr is located?

Dual Boot - Delete a OS-capture.jpg


My System SpecsSystem Spec
31 Aug 2012   #16
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

I think you are OK in this regard. The bootmgr is on C (active partition). D is also an active partition, but the current bootmgr is most likely not there.
My System SpecsSystem Spec
31 Aug 2012   #17
mz7thc

Windows 8 pro
 
 

How can I check this?
My System SpecsSystem Spec
12 Oct 2012   #18
thunderwolf333

windows 7 home premium 64bit
 
 

can someone help me, I did step 4 but when I try step 5 the program hangs and says not responding. now I dont have windows 7 listed to boot so I can't restart!
My System SpecsSystem Spec
12 Oct 2012   #19
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

That is worst case. Apparently your system was failing.

Try to rebuild the MBR with the bootable CD of Partition Wizard (last entry on the webpage). Burn this .iso to CD (e.g. with ImgBurn) and boot the system with the CD.
My System SpecsSystem Spec
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 Dual Boot - Delete a OS




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