Windows wont shut down :(

Hi i got a notebook, and im having problems shutting it down, through windows menu shutdown. I have to manually do a force shutdown by hitting the button.:S please help me

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Starter, Service Pack 1, 32 bit
Processor: AMD C-60 APU with Radeon(tm) HD Graphics, x64 Family 20 Model 2 Stepping 0
Processor Count: 2
RAM: 749 Mb
Graphics Card: AMD Radeon HD 6290 Graphics, 256 Mb
Hard Drives: C: Total - 102399 MB, Free - 79970 MB; D: Total - 187467 MB, Free - 187372 MB;
Motherboard: ASUSTeK Computer INC., 1015BXO
Antivirus: Trend Micro Titanium, Disabled