I have a Dell XPS17 l702x laptop which is rapidly becoming unusable. Its OS is Windows 7 x64 Pro.
Its problem appears to be that a number of services are not running, primarily Plug and Play, which has stopped. When trying to start it I get error 2 ""The system cannot find the file specified". A number of other services including the audio system, and virtual disk won't start either because they are dependent on Plug & Play.
I have run the sfc - which passes fine.
I have run MBAM a number of times (I have the paid for edition so it should be keeping an eye on things anyway). It passed - however on some restarts MBAM reports the anti-rootkit module won't load (error 20025). Malwarebytes advised removing MBAM and re-installing. I did that. That fix lasted about a day, and today I am now back to square one with the same error as before, plus error code 20023.
I have just tried to do a re-installation of Windows 7 (the upgrade type, thus leaving all data in place). That failed to start because the virtual disk cannot be started.
I note that about 60 windows updates are waiting to install - but I cannot get them to install. No doubt related to the lack of the correct services.
The PC is slowly failing - I can still do some things on it (including writing on this forum), but there's no sound, no updates, no functionality on USB ports (no PlugnPlay) - not sure what else has failed as yet.
If I have to I will do a clean reinstall of Windows. It would be nice if there is an easier fix....!
P.S. I originally posted an earlier version of this in Windows 7, it then got moved to hardware because of a keyboard failure - but I am now pretty sure that's all a red herring.....