All the apps mentioned above are excellent! Let me also add Spybot Search and Destroy to the list. It sounds like your system may be bogged down with spyware, malware, or a virus. You can try self remedy using the programs mentioned. I would use Spybot, Malwarebytes, CCleaner, AND an Anti-Virus program such as McAfee, Symantac, AVG, or Avira Antivir. (I use Avira free version). OR you can take the computer to a repair shop for cleaning, which will cost you between 50 to 150 dollars. Most likely they will need to wipe your computer. YOU may need to or want to wipe the computer also. Check with Dell Support on how to do this for your model....
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