Windows 7 Home Premium 64 bit Aero not working

[Sigrik]

Hello
I got a new computer yesterday and I noticed that the Aero theme is not working, there is no transparency and everything looks different than what it used to look like on my old pc with the same system.
Also, everytime I launch the PC, I get a popup which states: "Desktop window manager stopped working and was closed".
Here's what I tried to do so far:
-I updated my GPU drivers
-I tried to restart the desktop window manager in services.msc
-Troubleshooting in the personalize window
-In preferences I chose the system to adjust for best apperance
-I used the sfc /scannow command in cmd, after the scan it said that it detected broken files but was unable to fix them all, I added the log as a .rar attachment.
Thanks in advance!

 

[MilesAhead]

Try this tutorial to run sfc at bootup
http://www.sevenforums.com/tutorials/139810-sfc-scannow-run-command-prompt-boot.html

 

[Sigrik]

Unfortunately, I dont have the windows CD. It was installed at the computer shop from which i bought the PC.