Why my laptop slow after clean dust?

my laptop got clean dust and after that when I running the laptop...my laptop not overheat anymore but it got a problem which is my laptop running a bit slower before the clean dust, I can't play game smoothly, when I watch movie with players there no sounds sometimes also with my browser open also make the same problem either watch on youtube or open my movie file (their sometimes make no sounds and sometimes their okays...) the biggest problem is my laptop become slow even my ram already 12gb and I using core i5....

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Sounds like some general maintenance is in order. Do a defrag on the system . Also a disk cleaning and a spyware malware sweep . This should speed up you system. If you tell us what OS your running we can direct you to the proper programs within the OS. Hope this helps

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I'm using window 8.1 this happen after the clean dust before this everything was fine...I already have everything like revo uninstaller and anti virus avg...


when cleaning dust did you open the laptop or just blow air through the machine


this video will show how to get to defrag tool and disk cleanup



you can also do a sfc scannow in command to check system files for faults



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