Re: Unable to open device manager
Have you applied the fix to dlete shortcut arrows.? If so, that is the reason for the problem.
The so-called "fix", has deleted the IsShortcut registry value . Download and apply this .lnk file association fix :
File Association Fixes for Windows 7 - The Winhelponline Blog
Operating System Windows 7 All varieties (64Bit) Now Windows 8
Computer Type Self built
CPU Type and Speed AMD X4 2.8 Ghz
Motherboard Chipset Gigabyte MA74GMT
System Memory Type 4096 MB DDR-3 1333 Mhz
Video Card Type and Speed Radeon HD 5450 1024 MB PCI-E
Hard Drive 320 GB SATA
Anti-virus Software MSE
Computer Skill Level Self-Taught Expert
Favorite Game Pool/snooker Online.