My task Manager Will Not STay Open

right click a clean area of the task bar then click on task manager and see if it runs ok from there

Check your Computer for  a Virus & Delete all Ad ware.

You can  get FREE program called Spybot from;
http://spybot.eon.net.au/
If you install with Blind Icons you also get extra Immunize Options
"Lock IE Home Page"
"Lock Hosts file"
"Lock use of Internet Options from IE" > Tools > Internet Options

Use Update 1st before Immunize & Scan for problems & delete files shown in Red or Green & auto ticked.
Also has other Tools , like list or Add/Remove of Auto Startup Programs & lists Hosts file

If you have already install Spybot & Immunize doesn't show extra option
change the Shortcut link "Target" to
"C:\Program Files\Spybot - Search & Destroy\SpybotSD.exe"
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You can also get FREE Programs called Ad-ware from;
http://www.lavasoftusa.com/software/adaware/
Update program 1st before Scan.
Delete links for "Data Miner"

As both programs have a different Data base use both.

Try system restore

http://support.dell.com/us/en/kb/document.asp?dn=1055856 

 

Thanks