few days back  i was downloading something from internet after the download finished my pc isn't working properly. Everytime there is a message asking me install  some software and some of them have installed themselves automatically. Now when i am trying to type anything the windows explorer stops responding and crashes.I thought about installing an antivirus but i am unable to download anything on my pc as the browser just crashes. I already have Microsoft Security essential installed but that's not working. Any advice?  thanks in advance.
				
			 
				
		 
 
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		
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