Foloseste tuneup utilities http://www.softpedia.com/get/Tweak/System-Tweak/TuneUp-Utilities.shtml pentru optimizare, ccleaner pentru curatare http://www.softpedia.com/get/Security/Secure-cleaning/CCleaner.shtml. poti avea si virusi si iti recomand sa-ti faci o scanare cu un utilitar "combofix" http://www.bleepingcomputer.com/combofix/how-to-use-combofix si/sau kaspersky virus removal tool http://www.softpedia.com/get/Antivirus/Kaspersky-Virus-Removal-Tool.shtml. nu uita ca dupa sa instalezi si un antivirus bun (recomand avira care e bunicel si gratuit http://www.avira.com/en/index )
Reinstaleaza windows-ul