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Posted: 6/22/2011 4:01:04 PM EDT
I just learned about this lil gem when trying to get rid of the fake, Trojan-XPSecurity2012" scam virus.

Apparently if you delete the contents, your computer will be faster, I did such and it seems to be faster. I know that it is sort of a "pre assembly" to files and they say it could slow things down trying to rebuild the ones you use, if you delete them.

So far so good. Anyone have experiences with this folder, is it just snake oil? harmless to delete? Worth deleting?
Link Posted: 6/22/2011 5:38:06 PM EDT
Link Posted: 6/22/2011 6:11:52 PM EDT
Harmless to delete.

"Prefetch" is basically a cache folder where the computer looks to start stuff fast. Executables, DLLs, but stuff that is not running as a service.

If it's cleared out, it will get re-created over time.

Stuff that was in there, will start slightly slower.

It IS a source of re-infection and false positives, but generally stuff in there is non-executable and you don't need to think about it or tinker with it.

If you had a virus, clearing it out may help a little. If not, leave it alone. Note. If you had a virus. WIPE AND REINSTALL. It's much faster than pulling crap otu by the roots. You never can tell if you got it all. Some backdoors are very passive and will let stuff in later.

Prefetch usefullness is much less than it was now that hard drives are as fast as they are. It's more of a "wow I got 20 gigs on my hard drive!" days.
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