I have a hp probook and it crashed a few days back and is running extremely slow. I am running windows 7 64bit, 4gbs of ddr3 ect. Anyways right before it blue screened I had installed 4gbs more of ddr3, when first booted it ran fine, but I went to update java and it just froze and blue screen'd. I took the ram back out and went to boot it up and it wouldnt allow me to go in safe mode, or return to a previous back up on the hard drive. After multiple attempts it wouldn't even recognize the hard drive. I had to pull out the hard drive and place it back in and that did the trick. I had to re-format the hard drive and I lost everything. Anyways I go and trouble shoot cannot figure out why it was running so slowly, come up with nothing. I put the 4gbs back in and it runs but very slowly. Internet loads super slow, but I know the connection is very good. When ever I try to go to control pannel or any other windows program it freezes up. On the internet I keep getting a plug in crash error, but I cannot recall what program it is. Does anyone have any ideas on what is going on? Its been a while since I messed around with computer, I never messed with anything windows 7, however I did some extensive stuff while working with Windows xp. Thanks for any imput.