after xp installation i lost windows 7!!

[almbher999]

Hi all ,,,
I'm new to windows 7 forums , I hope I can help and you can help me also.

I installed windows XP professional on my Toshiba laptop which contains windows 7 Home Prem.
when I finished installation the Default OS changed to XP and I tried to boot to windows 7 but I can't.

now I have format the partition (by using linux live CD) which contains "windows xp" but the boot failed to load windows 7!!!

it gives me a message system32\hal.dll is missing !!
so is this for windows 7 or windows xp??

I didn't touch windows 7 and the files still there with no change!!

any one can help me in this ,,,
I need my machine to load windows 7 again but I cant


any help is appretiated
Thanks

 

[Maguscreed]

There's about a dozen ways to go about this, the least intrusive one (though granted not very likely to solve this) would be to start with a simple startup repair, you'll need your windows disk for this.

I am hoping you didn't install linux's grub during any of this, I'm also hoping you were careful enough not to actually overwrite win 7 when installing xp.

http://www.sevenforums.com/tutorials/681-startup-repair.html

now if that fails, and it very well might.
This is probably the most hassle free fix for you.
http://www.sevenforums.com/tutorials/3413-repair-install.html
It will reset windows itself to default settings but your programs and files will remain as they were.

There are some other less drastic methods but I don't have a whole lot to go on here and a repair install will fix anything you've managed to mess up with the xp boot data.

 

[almbher999]

I'm sure i didn't overwrite windows 7 , because i have made a new partion for windows xp and i installed on it.
I don't know if it's automatically overwritten!!

and about linux also i didn't install linux's grub

about startup
the problem is that the choice of (repair computer) does not appear right now!!
before installation it was there but now when i press F8 the first option is safe mode and the others after but computer repair is not there!!


about repair install
I can not enter the windows 7 itself, the machine can not load the windows and it gave me the system32\hal.dll is missing!!

thanks Maguscreed

 

[Maguscreed]

startup repair is not working either?

hal.dll is because it's still trying to use the xp boot data. You need to restore the windows 7 bootmgr, startup repair should be able to do that.
http://www.sevenforums.com/tutorials/681-startup-repair.html

 

[almbher999]

it's working using windows 7 installation, I have using startup repair now and it restarted.
another problem comes againg
system32\ntoskrnl.exe >>> it says it's missing or corrupt!!

but my windows 7 can't be loaded till now!!


any help in this
thanks

 

[Maguscreed]

hmmm well if you can get to http://www.sevenforums.com/tutorials/69585-safe-mode.html with a command prompt that's all we need to run this.
http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

Please pass along the results of that scan.

 

[almbher999]

when safe mode tries to start this message is displayed

multi(0)disk(0)rdisk(0)partition(2)\WINDOWS\system32\ntoskrnl.exe
windows could not start because the following file is missing or corrupt:
<Windows root>\system32\ntoskrnl.exe
please re-install a copy of the above file.


thanks