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Windows 7: Need to select the default Windows 7 OS at boot, cannot boot into win7

16 Jul 2012   #1
Cobra281

Win 7 32 bit
 
 
Need to select the default Windows 7 OS at boot, cannot boot into win7

so, there was a problem with the bootup, and i popped in the windows 7 installation DVD, and repaired it(via system repair). all went well, i was able to get into windows. the "select which os to boot from" message popped up, so i disabled that and chose the wrong OS to be the default, the corrupted one [which is called "windows 7 home premium (recovered)]. i also, foolishly, set the timer to 0, so i can't even choose the "other" windows 7 os, the one that is not corrupt. also, bcedit does not work in DOS prompt. how can i get the default OS boot menu before bootup, again? thanks in advance


My System SpecsSystem Spec
.
16 Jul 2012   #2
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Boot tapping F8 multiple times, let's say every half second. Do you see bootmenu? If so select to write OS! If succeeded in win7 run msconfig. There you can delete the old "corrupt" OS from the list and set the timeout to 10 seconds for example
My System SpecsSystem Spec
16 Jul 2012   #3
Cobra281

Win 7 32 bit
 
 

Quote   Quote: Originally Posted by Kaktussoft View Post
Boot tapping F8 multiple times, let's say every half second. Do you see bootmenu? If so select to write OS! If succeeded in win7 run msconfig. There you can delete the old "corrupt" OS from the list and set the timeout to 10 seconds for example
F8 brings up the general device boot menu (boot from CD, Hard drive, etc)...
My System SpecsSystem Spec
.

16 Jul 2012   #4
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Boot into recovery environment where "startup repair" is one of the options. Click on "Command prompt". A black screen opens.


Code:
bcdedit/set {bootmgr} timeout 10
Now reboot and the bootmenu is there again. Use msconfig afterwards as told you before
My System SpecsSystem Spec
16 Jul 2012   #5
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Cobra281 View Post
Quote   Quote: Originally Posted by Kaktussoft View Post
Boot tapping F8 multiple times, let's say every half second. Do you see bootmenu? If so select to write OS! If succeeded in win7 run msconfig. There you can delete the old "corrupt" OS from the list and set the timeout to 10 seconds for example
F8 brings up the general device boot menu (boot from CD, Hard drive, etc)...
Maybe you can select "hard drive" there. Tehn again fast tapping F8 multiple times, let's say every half second.
My System SpecsSystem Spec
16 Jul 2012   #6
AddRAM

Windows 7 Professional x64 Service Pack 1
 
 

Or use EasyBCD.

EasyBCD - CNET Download.com
My System SpecsSystem Spec
16 Jul 2012   #7
AddRAM

Windows 7 Professional x64 Service Pack 1
 
 

Quote   Quote: Originally Posted by Kaktussoft View Post
Quote   Quote: Originally Posted by Cobra281 View Post
Quote   Quote: Originally Posted by Kaktussoft View Post
Boot tapping F8 multiple times, let's say every half second. Do you see bootmenu? If so select to write OS! If succeeded in win7 run msconfig. There you can delete the old "corrupt" OS from the list and set the timeout to 10 seconds for example
F8 brings up the general device boot menu (boot from CD, Hard drive, etc)...
Maybe you can select "hard drive" there. Tehn again fast tapping F8 multiple times, let's say every half second.
This will not help for operating systems on the same hard drive. If you manage to get into 1 of the systems use EasyBCD to edit your boot choices.
My System SpecsSystem Spec
16 Jul 2012   #8
followmylogic

Windows 7 Ultimate x86
 
 

Couldn't you load the command prompt go into the partition manager (diskpart I think is the command) and change your active partition to the one with the OS you want?
My System SpecsSystem Spec
16 Jul 2012   #9
Cobra281

Win 7 32 bit
 
 

Quote   Quote: Originally Posted by Kaktussoft View Post
Boot into recovery environment where "startup repair" is one of the options. Click on "Command prompt". A black screen opens.


Code:
bootmgr/set {bootmgr} timeout 10
Now reboot and the bootmenu is there again. Use msconfig afterwards as told you before
thank you, kind sir. i was not able to get into safe mode with command prompt. also, putting the windows 7 disc in and trying to repair again, and choosing either windows 7 boot partition yielded something along the lines of "the current version of windows is different from the one on the disc" and it would not attempt the startup repair again, on either partition.

Quote   Quote: Originally Posted by Kaktussoft View Post
Quote   Quote: Originally Posted by Cobra281 View Post
Quote   Quote: Originally Posted by Kaktussoft View Post
Boot tapping F8 multiple times, let's say every half second. Do you see bootmenu? If so select to write OS! If succeeded in win7 run msconfig. There you can delete the old "corrupt" OS from the list and set the timeout to 10 seconds for example
F8 brings up the general device boot menu (boot from CD, Hard drive, etc)...
Maybe you can select "hard drive" there. Tehn again fast tapping F8 multiple times, let's say every half second.
will try that tomorrow, thanks!

Quote   Quote: Originally Posted by AddRAM View Post
will try that if all else fails, thank you!

Quote   Quote: Originally Posted by followmylogic View Post
Couldn't you load the command prompt go into the partition manager (diskpart I think is the command) and change your active partition to the one with the OS you want?
did not know about that method, thanks!
My System SpecsSystem Spec
17 Jul 2012   #10
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Boot from either your Windows 7 installation disc or Windows 7 System Repair Disc, and press Shift + F10 when at either screen below.

My System SpecsSystem Spec
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 Need to select the default Windows 7 OS at boot, cannot boot into win7




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