See if this assists you.
Do a System Restore in Safe Mode to before the problem started, if possible. http://bertk.mvps.org/html/restoresysv.html
How to access Safe Mode http://www.bleepingcomputer.com/tuto...fe-mode/#vista
If it doesn't, try a Startup Repair and / or a System Restore using a Microsoft Vista DVD
Manufacturers Recovery Disks do not normally have Repair Options; they are normally a reinstall to Factory Settings option only.
Here is the guide to using the Repair Options while using a Microsoft Vista DVD.
If a friend or work acquantance of yours has one, you may borrow and use it for Repairs. http://www.bleepingcomputer.com/tuto...tartup-repair/
Table of Contents
Overview of the Windows Vista Repair options
How to perform an automatic repair of Windows Vista using Startup Repair
Advanced Tools overview
If you do not have or can not borrow a Microsoft DVD there is a download of a Vista Startup Repair ISO file available which you can make into a Bootable disk to do the above Startup Repair and that method is recommended by a lot of posters in these Forums.
Unfortunately, you have to buy it.
Here is a link to it: http://neosmart.net/blog/2011/window...ed-reinstated/
Malwarebytes does not check for viruses. Do you have an Anti-Virus program you can do a scan with?
I recommend Microsoft Security Essentials or Avast on this site. http://windows.microsoft.com/en-US/w...ity-essentials
or avast! | Download Free Antivirus Software or Internet Security
both are free. ONLY USE ONE Anti-Virus program, having more than one will cause problems!
In conjunction with either of them use both of the following and run them at least once a week.
Malwarebytes Malwarebytes Anti-Malware - CNET Download.com
Superantispyware SUPERAntiSpyware | Remove Malware | Remove Spyware - AntiMalware, AntiSpyware, AntiAdware!
Make sure to update their definition files during the install process.
Make sure to uncheck and decline to install any extras, such as toolbars and homepages, they may offer.
Make sure to uncheck or decline to use the "Pro" or "Trial" version, if it's offered.
After they're installed and updated, restart the computer.
Run a quick scan with each one.
After each quick scan is finished, select and remove EVERYTHING that was found.