Unless it's hardware, going back to factory conditions should help. Your user manual, or the dell site after your service tag, know how to do that.
I am Arvind Pandit from Kansas. I want to share several issues that I'm facing with my laptop such as when I am working on my small laptop it hangs once again & once again plus it gets diffcult personally to accomplish the work. I have already discuss this problem with the worried person yet he is certainly not capable of sort out your issue. Therefore please suggest me regardless of whether I have got to purchase the brand name new one as well as it could be repaired?