Reasons for this error include bad memory, corrupt files, OS bugs, program bugs, and more.
When did this start happening ?
Does this happen when you run some specific application ?
Did you install something new in the machine recently ?
Some things you could do:
-Apply the latest OS service pack available
-If this happen with some specific program, make sure you have the latest version.
-Check your RAM (<a href=”http://www.memtest86.com/”>Memtest86</a> could be useful on this)
-Check your program code if this happen with a program you are developing.
The <a href=”http://oca.microsoft.com/en/windiag.asp”>Microsoft memory diagnostics</a> tool will also help you determine if you have faulty RAM DIMMs.
thank you all for your answera they are very helpful,and they helped me solve the problem=)