i recently bought a pc from a friend + it was working fine, until a couple of weeks ago when i deleted something i shouldnt have + the computer wouldnt boot up. the computer didnt come with a copy of windows(more like it did but he kept it for himself) so i had to buy it seperately, i bought a new hard drive( 250GB 8MB SAMSUNG SP2504C) + installed windows onto it. that was about 2 weeks ago, ive since put a lot of songs, videos, + games onto the hard drive. every thing was fine until the other day when i tried to open my documents + it took about 5 mins to get into it. i checked the items on startup( + looked them up on bleepingcomputer to see what they meant) + now have about 5 on startup. but it still runs very slowly, sometimes when a new window opens, the old window takes ages to go away + does so a bit at a time. i went to control panel>system + it said my cpu was only 1.0GHz???? my specs are: amd athlon 64 k8 newcastle 1.6 - 2.4GHz, asrock k8upgrade vm800 socket 754 mobo, elixir 256mb ddr400 pc3200 184pin ram, 250GB 8MB samsung sp2504c hdd.....is my pc running slowly because of the lack of ram? + do i need to overclock my cpu? if so how do i do it? I WOULD REALLY APPRECIATE SOME HELP HERE AS I DONT KNOW WHAT TO MAKE OF THIS(i downloaded + ran sisoftwares sandra lite 2007 + it said my cpu was amd athlon 64 k8 newcastle 1.6-2.4GHz, but in system it says ONLY 1.0GHz.....THANK YOU FOR TAKING THE TIME TO READ THIS + HOPEFULLY YOUR HELP!!!!!!!!!