✔ 最佳答案
the safest way you need to clean up your system from junk files.. You should run
1. disk clean up
2. defrag
3. error checking utility
to do this you need to go My computer> right click on drive "C" > choose properties. here you can see the first tool " disk clean up" after this select the "tool" tab" you will be able to see the "disk check" and the "defrag". when using the disk check utility be sure to put a check mark on the two boxes. 1 the auto fix errors and 2 the scan and recover errors... then select start.. you will be prompted if you wan to schedule it on the next restart then. select yest..At this point the error checking will be done when you restart your computer. Don't panic if the screen terns blue. It will restart to a dos prompt mode to have exclusive access to the hard drive. this will take for a while..
After the those three things you still have things to do.. On you internet browser select tools then internet options. On the browsing history select delete all. then ok then restart your browser.
one last thing you can do to speed up ypur computer.. download advance system care free from download.com. this will clean your system really good. After installing this. it will automatically scan select stop scanning. then push the middle circle that has a logo "care". This will automatically scan and fix the problem it finds with your system....after doing this you computer will be much faster than it was bought ...good luck