Windows 7 Drivers not working, re-install isn't helping

[Seamus]

My Windows Security Essentials decided to delete the wdf01000.sys file because it detected a trojan in it,which ofcourse caused a few problems. It meant that lots of my drivers have ceased to work, most annoyingly the keyboard and sound drivers. I added a new wdf01000.sys file from a backup i had of it, and re-added the registry for it, however the driver issues have remained even after re-installing them. I ran a scan and will attach the CBS text file to this post. If anyone can help me out, i'd appreciate it. The laptop functions normally apart from the driver issues. (they appear to be there just not functioning) PS. There is no remaining trojan, i have scanned using malwarebytes on top of MSE.

Edit: the attach feature isn't working so i uploaded it here http://www.datafilehost.com/download-452bd184.html

Extra Info:
OS: Windows home basic 32 bit
Laptop: Acer Aspire 5739G

 

[Saltgrass]

It seems to be asking for a reboot, have you tried that? Maybe even a complete shutdown?

When you replaced the file, did you use the process from this link? It appears the file is still not being repaired.

Use the System File Checker tool to troubleshoot missing or corrupted system files on Windows Vista or on Windows 7