I know this is quiet old but it deserves an answer so ppl dont do something stupid. The "cache" folder is useful do not delete it! it speeds up boots and allows for boot of NMM if this Isn't here it could take you hours to boot if it boots at all! Better to just leave it there the biggest file in there will be 6-900 KB not big enough to care. so take my advice and leave it Be and enjoy what ever game it may be you're playing