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Windows 7: critical system drivers missing

02 May 2010   #11

Windows 7 32bit OEM (Hopefully!!)


Thanks for your help so far. Here is an update..

cleaned the HD and did a new install - things looked alot better this time (previously it was doing odd things like creating a 100mb C drive and installing 7 to the D drive).

Anyway the instalation got all the way through and restarted the machine. It then was updating the registry when it just restarts and says "Windows failed to start" trying to start in any mode results in the machine restarting.

I have tried installing 7 twice now and both times a repair has not worked either.

Any suggestions welcome....


My System SpecsSystem Spec
02 May 2010   #12

Windows 7 32bit OEM (Hopefully!!)

This is a nightmare - i thought computers were supposed to be getting more user friendly!!!

Managed to get the install a bit further after removing the hidden Acer partition and removing some RAM. Now the laptop takes ages to load (sits at a blank screen with a cursor then at the "please wait..." screen) and loads to a log on screen. This would be great however i have not been given the chance to do any of the installtion set-up - time zone, user accounts etc so i do not have a log on. if i try leaving it blank that doesn't work either!!!

update.. just tried a repair and it could not find any problems
My System SpecsSystem Spec
02 May 2010   #13
Microsoft MVP


Can you boot into Safe Mode? If so, check the Event Viewer for which driver is failing.

Run chkdsk on the HD, then the maker's diagnostics/repair full CD scan:

Test your memory using memtest86 CD.

Clear the CMOS to return BIOS to defaults:

Try setting SATA controller to AHCI first, then IDE if necessary.

Did you zero the HD using Clean All command, then create and format partition before install?
My System SpecsSystem Spec

03 May 2010   #14

Windows 7 32bit OEM (Hopefully!!)

Hi gregrocker thanks for the reply,

unable to boot into safe mode i get the same problems.

I did a clean all nad created a new partition although i havn't done this every time i have reinstalled (which is quite a few times now!!) i have just being formatting the drive using the drive options during the installtion.

BIOS has been reset aprt from a change to the boot order to boot from the cd.

Did a chkdsk and a memery test earlier on and no problems were found.

I now seem to get two different problems. if i install with no additional drivers (for both AHCI and IDE) i get a BSOD during the "updating registry..." stage. if i set the HD to AHCI and add drivers i get the same as above, set it to IDE and add drivers i get back to my orginal issue and get "critical system file missing".

Thanks for the help,

i'm starting to loose hope on this now..


My System SpecsSystem Spec
03 May 2010   #15

Windows® 8 Pro (64-bit)

Where did you get the Windows 7 DVD from? I guess it could be due to a corrupt DVD. I guess so.
My System SpecsSystem Spec
03 May 2010   #16

Windows 7 32bit OEM (Hopefully!!)

Hi Dinesh,

CD is a guenuine windows CD form my local computer store so i would hope it wasn't the CD.

I have just run a chkdsk on the c: drive and got the same error four times:

Error detected in index $I30 for file 2774. Does this give any more clues?

chkdsk is still running.
My System SpecsSystem Spec
03 May 2010   #17

Windows® 8 Pro (64-bit)

As a last resort, try the tutorial which I have mentioned on page 1 of this thread. This will delete all the partitions of the HDD and will re-create Sector 0 of the HDD. It SHOULD work.
My System SpecsSystem Spec
03 May 2010   #18

win 7 ultimate32bit, Win8.1pro wmc 32bit

are you sure the Hdd isnt failing?
My System SpecsSystem Spec
03 May 2010   #19

Windows 7 32bit OEM (Hopefully!!)

Hi Pebbly,

I did suspect the HDD may be failing however i didn't want to go and waste £50 on a new one until i had tried everything else and was sure that was the problem. chkdsk has finished and it looks like it had to do a lot of work! 12 kb of bad sectors have now been identifed so i will try an install one more time and if this fails the only think left i can see to do is try an new HD. I just don't want to do this if it's a driver issue not a HD issue as i will loose £50.

If i do a clean all and create a new partition (again) would the the hard drive still remember the bad sectors or would i need to re-run chkdsk?
My System SpecsSystem Spec
03 May 2010   #20

Windows 7 Professional x64

Here, test your hard drive with one of these programs: HD Diagnostic

You can also take the hard drive to another machine and run SeaTools on it.
My System SpecsSystem Spec

 critical system drivers missing

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