After my PC getting slow and having loads of problems with Vista I decided to clean install my PC and install Windows 7 for the very first time, I installed it with my new ordered Windows 7 Professional 64 bit CD. It was very cheap 35€ on ebay so I bought it immediately, the seller was genuine and trusted by the ebay community, very high rated. I got my CD which looks like my old Vista OS Recovery CD. The CD I bought is like this: After having problems for my Disk Drive to recognize the CD, after taking out the CD a few times & hop it in again it finally recognized the CD. I rebooted my pc, changed boot order etc and Windows was installing after being away for some time some error popped up at the early stage of installing ... windows 7 installation cannot find device drivers etc, I searched on some forums, many different opinions so I choose one which was to change it from SATA to IDE or sth, but after that & some other things I did to try to fix it everything [Admin NOTE: Profanity removed as per TOU] up, I can't even boot up my pc properly anymore. Also in BIOS no bootable devices are present, so simply means no bootable device in installed, everything (drivers) got erased or what, so everytime I boot up my PC it says: "No bootable device found: Press F1 to continue, F2 to Setup Utility(=BIOS). I managed to restart and pull F2 Boot Device Menu and I executed Hard Drive Diagnostics which provides me following: information: Floppy Diskette seek failure Hard Drive Diagnostics Running, please wait ... Drive 0: no device Drive 1: WDC WD2500JS-75NCB3 - Pass Drive 2: no device Drive 3: no device Drive 4: no device Drive 5: no device Test complete, press <ENTER> to reboot. Basically windows 7 [Admin NOTE: Profanity removed as per TOU] my whole PC, actually I did myself probably, sorry for my offensive language but I truely got mad because I have been trying things for 12 hours. I would sincerely appreciate your help, I hope I didnt completely screwed my PC up ... I have lack of money atm so buying a new one is difficult at the moment, I hope it still can fixed, last option is to buy a new HDD.