Soft ware crash

[london]

After some time of using my system say about a month, the software in the system starts crashing. Is this done because of the virus or it is something else?

[funtoosh]

You must start updating your applications as there are some bugs left which vendors fix after getting reviews.

[blasted]

You need to run disc cleanups, defragments and check your disc drive for errors and run virus scans monthly.This keeps your system in top shape and running smoothly this could be the most likely cause.