Hello Guys,just got ma pc 2 month ago and ive bin avin series of problem wif ma hp635 pc...Firstly after installing avast antivirus into my system,it worked and afta a week it started telling me ''my computer is nt secure''.i wanted to uninstall it buh it said setup cannot contnue and a file is missing,and it cant delete....i dont reali know d roblem so i guess i av to format it buh i dont know if ''formatting'' spoils a system......Secondly some movies dat do not crack on oda pples system do crack on mine and i dont know d reason y....Thirdly,wen i try installing some games e.g fifa 13,it told me a particular file is missing,therefore it will not load;a fwend said i deleted a particular file buh will formatting bring back such file.....Fourtly,is it possible to change frm 32bits to 64bits and 256rm to 512rm without affecting the computer,and d rating is 3.8,is it too low...Fiftly,wen all d problems av bin solved that is after formatting d system,wat antivirus can i useNoTE:hp635....GOSH!!!hope im nt stressing you guys and pls i hope to hear frm u guys in any of d aspect u tink uve got smetin to help out cos am tayad of d system ....THANKS A LOT

Hmm! First of all, a sysytem with 256mb ram is too small( is dat a pentium 2?), secondary, not all anti virus should work well in such system,some anti virus will make ur system to be very slow,thirdly,it can never play fifa 13( d game needs atleast 1g ram).

For the ram,it can be upgraded to 512ram( which is still small but better dan 256). Maybe ur system has been attacked by a virus.
My advice to u is to save ur files to an external hard drive and den format ur system. Avast antivirus should be good for ur system. Good luck!

Oh sowi i mean 2gb...can it b changed to 4gb