Windows 7: AppHangB1 Please Help..

I am playing a game which was running smoothly until yesterday when I try to log-in it always say "not responding". Here are the data about my laptop and the data of the said problem. I hope somebody could help me.

Processor: Pentium(R) Dual-COre CPU T4500 @ 2.30GHz 2.30
RAM: 2.00 GB
System File: Windows 7 Ultimate 32-bit OS



escription:
A problem caused this program to stop interacting with Windows.

Problem signature:
Problem Event Name: AppHangB1
Application Name: khan2.exe
Application Version: 2.0.73.90
Application Timestamp: 50173ac6
Hang Signature: 2264
Hang Type: 1
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033
Additional Hang Signature 1: 2264db07e74365624c50317d7b856ae9
Additional Hang Signature 2: 875f
Additional Hang Signature 3: 875fa2ef9d2bdca96466e8af55d1ae6e
Additional Hang Signature 4: 2264
Additional Hang Signature 5: 2264db07e74365624c50317d7b856ae9
Additional Hang Signature 6: 875f
Additional Hang Signature 7: 875fa2ef9d2bdca96466e8af55d1ae6e

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Please help me, I am not a techie..

Their/there are many things that can cause your condition but lets start with the basics. Use Windows 7 Updates and get all updates including SP-1.
This khan2.exe could be trouble some. We also need to know that your computer is clean so I would recommend using this.
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Windows Defender Offline
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Are you using any so called tune up, optimizer programs or registry cleaners?
Get back to us when this is done.