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How to unmark active partition?

Last response: in Windows 7
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June 19, 2011 4:08:13 PM

I made partition by using Disc manager, and accidentally marked C drive active. After restarting an error message is showing. I cant get into DOS command prompt , even by hitting F8. I used my recovery disc, but it tells me "No OS found!" . My laptop ACER has come with a pre-installed Windows 7 home premium 64bit. Can i solve this problem without formatting C drive, bcz i didnt make back up of many of my important documents stored in C drive. Plz help

Best solution

a b $ Windows 7
June 19, 2011 5:22:43 PM

run cmd from dvd

type in:

diskpart

type in:

show volume

Find out the volume then type in:

select volume x

x being the volume number

then type in:

inactive
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February 18, 2014 3:47:04 PM

Pyree said:
run cmd from dvd

type in:

diskpart

type in:

show volume

Find out the volume then type in:

select volume x

x being the volume number

then type in:

inactive


how to cmd from dvd..? should I insert a random dvd or win 7 installer..?
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April 18, 2014 1:32:36 AM

ariokusuma said:
Pyree said:
run cmd from dvd

type in:

diskpart

type in:

show volume

Find out the volume then type in:

select volume x

x being the volume number

then type in:

inactive


how to cmd from dvd..? should I insert a random dvd or win 7 installer..?


Insert win 7 DVD. Boot from CD. Repair windows.

Then click around till u find the command prompt.
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July 1, 2014 2:33:37 AM

hi Moshiur
I got the same problem on my pc, a while ago i went to disk management and made one partition ACTIVE; unfortunatly all my partition became active and when i tried installation disk for reinstalling win7 all the partition show DYNAMIC PARTITION and are unable to install win7 on them, pls help me find the solution, I guess both of our prbs has started frm same mistake though u may help me,
thank you
regards
Dev
email- d29meh29@gmail.com
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