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

[Cobra281]

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

 

[Kaktussoft]

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

 

[Cobra281]

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)...

 

[Kaktussoft]

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

bcdedit/set {bootmgr} timeout 10

Now reboot and the bootmenu is there again. Use msconfig afterwards as told you before

 

[Kaktussoft]

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.

 

[AddRAM]

Or use EasyBCD.

EasyBCD - CNET Download.com

 

[AddRAM]

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.

 

[followmylogic]

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?

 

[Cobra281]

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

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.

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!

Or use EasyBCD.

EasyBCD - CNET Download.com

will try that if all else fails, thank you!

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!

 

[Kaktussoft]

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

​

 

[Cobra281]

it says "'bootmgr'" is not a recognized external or internal command when typing that command in dos at the repair menu

 

[Kaktussoft]

bcdedit/set {bootmgr} timeout 10

is the right command. sorry for typo

 

[Cobra281]

same msg, i've tried doing it on both partitions also...

 

[SIW2]

That isn't going to work.

Download NEW zip file from here ( do not download New.7z - that is different)

https://skydrive.live.com/#cid=B0A22789320E3247&id=B0A22789320E3247!320&=documents




Extract the .iso from the .zip file.

Burn it to cd .

Boot it up on your machine.

 

[Cobra281]

going to try to use partition wizard boot cd...

 

[Kaktussoft]

in dos in recovery environment

bcdedit/set    {bootmgr}    timeout    10

I added some extra spaces for readability. Type it exactly as shown above. It must work! Just tried it myself