Sounds probably simpler than I think it is , since theres a few curious goings on here........... The symptoms..... Computer crashs on me some time ago ( a few months ago , but havent needed it again up to now ) automatically goes to windows repair screen , shows to be loading for some time... windows can not fix message , try advanced options , memory diagnostic , system restore Memory shows no issues , and system restore continuously fails. In the back of my mind , I put down to software issues , possible virus. Didnt have my original disc handy ( im abroad ) so used my laptop up to now. Cut to the other day , I get hold of a COPY of win7 , as I have my key still. Installed a fresh one , probably unrelated but had the common 651 error , wouldnt connect to internet. I managed to sort this by copy and pasting raspppoe.sys from my laptop Only for the computer to fail in exactly the same way after restarting after updates. So being a glutten for punishment I did another install , this one lasted a day and a half surprisingly ! I made sure all drivers were up to date with Driver genius , tried to update my bios , but had the latest update already. So the computer seemingly worked fine , restarted a few times with no major issues. UNTIL today ! It did the exact same thing to me, went to the windows repairing screen , thought there was a ray of hope this time , as it said something about windows may be able to fix the problem, only for it to restart and stick on the windows is starting screen ? Im also now thinking I have done something to further roger it , because I was almost going to do another fresh install , and I thought , no wait , ill see if there are any other options 1st , and see if theres nothing loose inside , as it did make a long trip in the back of van from UK to Hungary. So had a prod around , checked all the connectors were ok , I did remove one of the sticks of ram , and pulled out the HDD connector and placed back. SO now , it wont recognize any of the bootable disc I have ? I says discs because I have a copy of winXP , that I dont think my system will run away , install to the last point yes , but run no ! well anyways any of the discs I put in , it just goes straight to the windows starting screen , and hangs there ???? If I dont put a disc in , and wait to be prompted , and then put it in , it wont ave it !!! Sorry for the essay , but wanted to best explain it ! please any advice ! Just to add , half an hour ago it was seeing the disc , and booting it up , both the xp and the windows7 now its not aving it ???