Windows has stopped working

I RECENTLY BROUGHT HPPAVILIONdv2918TXLAPTOP and using windowsvistahomebasic..
when i m trying to open any folder or any thing it is opening a dialog box as windows explorer has stopped working and asking to restart program every time randomly and making unable to work
Problem signature:
Problem Event Name: APPCRASH
Application Name: Explorer.exe
Application Version: 6.0.6000.16386
Application Timestamp: 4549b091
Fault Module Name: CLMedia.dll
Fault Module Version: 2.0.0.1914
Fault Module Timestamp: 43118e4f
Exception Code: c0000094
Exception Offset: 00003fb6
OS Version: 6.0.6000.2.0.0.768.2
Locale ID: 16393
Additional Information 1: d6aa
Additional Information 2: 550813108d42c370043e28bb37aac5af
Additional Information 3: d6aa
Additional Information 4: 550813108d42c370043e28bb37aac5af

this problem started when i tried to burn the disc ...
this is causing a serious problem and am unable to open anything....
so,please kindly reply me as early as posibble