Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Dual Boot - Delete a OS

20 May 2015   #100
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

First problem I see is that the Win7 partition is not 'active'. Use the PW CD to set it active. Highlight the Win7 partition > Partition tab > Modify. Then try again to boot.

If that does not work, Rebuild the MBR. Highlight the disk (not the partition) and the control is in the left pane.


My System SpecsSystem Spec
.
20 May 2015   #101
driansmith

Windows 7 - 64 bit
 
 

Thats got me rebooted! Excellent! Strange though.

Next stages - excuse the caution but........ I'm cautious.
Step 2 - Delete the unwanted OS partition and reuse the space (Optional)
When I have deleted the volume and deleted the Partition, I must not reboot yet until I have carried out Steps 3,4,5 ??
Step 3 - Cleanup the bootmgr
Seems logical - should be straightforward
Step 4 - Clean the MBR
Step 5 - Reset MBR with the entry of the current OS
Unsure about the logic of these steps, but I will follow the instructions. BUT, Kimwu said something about the need to "Re-create boot files"??

Regards
Ian
My System SpecsSystem Spec
21 May 2015   #102
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Steps 2 and 3 are OK. But I really don't know what you want to do with steps 4 and 5. If your Windows 7 boots, then the MBR is OK.

Working the MBR is no child's play. You would need to know the exact structure and work it with a hex editor.
My System SpecsSystem Spec
25 May 2015   #103
driansmith

Windows 7 - 64 bit
 
 

Thanks for all your help whs.
Completed the task, all working perfectly - phew!

Ian
My System SpecsSystem Spec
.

25 May 2015   #104
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

You are welcome. I am glad it worked out OK.
My System SpecsSystem Spec
30 May 2015   #105
Aruneek

---Windows 10 Build 10051
 
 
Delete Windows 7 from dual boot

I want to remove the windows 7 from my dual boot os since i am fairly satisfied with windows 10. Now I have got a System Reserved partition which is marked active.
My question is can I simply delete the Windows 7 partition(Drive H) without having to copy the boot mgr to Drive C (Windows 10) by Easy BCD.
I would be glad to get your help in the issue.
My Windows 10 is on Drive 'C' & Windows 7 on Drive 'H'.Also Windows 10 was installed later on the PC.
Following is the screen shot of my disk mgmt. screen-


Attached Thumbnails
Dual Boot - Delete a OS-capture.jpg  
My System SpecsSystem Spec
30 May 2015   #106
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

You only need to keep the system reserved. But I would advise against deleting Windows 7. The Windows 10 test version is still too shaky.
My System SpecsSystem Spec
02 Jun 2015   #107
Aruneek

---Windows 10 Build 10051
 
 

That means I can go on with it.
Please,i want a final go signal
My System SpecsSystem Spec
03 Jun 2015   #108
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

If you want to run with Windows 10 only, you can delete the Windows 7 partition. I personally would not do that at this early stage of Windows 10, but it is an option.
My System SpecsSystem Spec
20 Jul 2015   #109
Guy with pc

Windows 8 pro 64 bit
 
 
One problem

ok, so iv tried everything but i cant delete my old windows 7 partition because it is labeled as system


Attached Thumbnails
Dual Boot - Delete a OS-screenshot-1-.png  
My System SpecsSystem Spec
Comment

 Dual Boot - Delete a OS




Tutorial Tools Search this Tutorial
Search this Tutorial:

Advanced Search




Similar help and support threads
Windows 7 Tutorial Category
How to delete Windows 7 from Dual boot
Hello all, I have windows XP and Windows 7 (Dual Boot). I want to delete windows 7 from it as my computer becomes really laggy. I have Pentium D as processor with 2 GB DDR2 RAM. So can you please tell me as to how delete the partition? Will install Fedora in its place. Hoping to hear from...
General Discussion
help here how to delete dual boot
i already install dual boot which is Windows 7 and winxp but in different hhd i formatted windows xp that partition and still show on boot menu how to delete that? its show in startup and recovery but not show at msconfig there
Installation & Setup
delete XP from dual boot ...
Hi, I first installed WinXP on the first partition of hard disk - drive C:. After that I installed Win7 on a new created 4. partition of the HD. When I start Win7 using boot menue, drive C: ist now for Win7 and D: is for WinXP with following status displayed by disk managment: C: startpartition,...
Installation & Setup
How to delete XP from dual boot with Win 7
Xp was installed first, then Windows 7 added as dual boot. Now no need to keep XP. However boot files are on XP partition so you cannot just delete/format the XP partition. So get EasyBCD 2.0 latest, you need to register but it's free. Check Windows Disk Management for the "system" flag....
Installation & Setup
Delete XP dual boot
I see no reason to keep my XP dual boot. The XP installation is on a discrete physical drive. Win7 is on an active drive set as the first boot drive in BIOS and is the default OS at system startup. Can I just remove the drive and do a 7 startup repair to fix the boot, or are there more necessary...
Installation & Setup
Want to delete an OS from a dual boot configuration
Hello, I originally stated out with XP Pro and then installed Win 7 in a separate partition with dual booting. Now I want to get rid of the XP OS and recover the partition the XP OS is in for other uses. Running bcdedit shows the the Win 7 as drive C and XP as drive D. The master boot...
Installation & Setup


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 15:29.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App