I think your computer is suffering from excessive junk files of all kinds. I suspect that you are not maintaining your machine, and this is what happens. Look up annnd install these free programs up on the web and use them...'Auslogics' hard drive defrag program, 'Auslogics' registry defrag program, 'Glarysoft' registry repair program, 'Eusing' registry cleaner, 'Dustbuster 2.9.5' junk file remover, CCleaner program, a '15 day trial' of 'Sunbelt' Counterspy spyware program, 'a
30 day free trial' of 'Kaspersky' antivirus program. [NOTE; if you have a different antivirus program (freeware) unload it and use 'Kaspersky'] then load 'Avast' antivirus (free) virus program. "Advanced Window Care V2". 'Fast defrag 2' free ram defrag program. Run your hard drive's 'error checks' (both). When you're online start one of these, minimize it to your task bar and pull it up when it's done. If your machine slows down too much from the muilti tasking, be patient and give your PC the treatment and often.