Hi there, I have recently purchased a few computer parts and upgraded my computer. After putting it together, I switched it on and went to install windows 7 (hardware changes stop me booting my previous installation). (Note: I was previously using this windows 7 on my old mobo etc.) However, once it does the 'Loading Windows Files...' bit, I get an error message as follows: "WINDOWS BOOT MANAGER Windows failed to start. A recent hardware or software change might be the cause. To fix the problem: 1. Insert your windows installation disc and restart your computer. 2. Choose your language settings, and then click "next" 3. Click "repair your computer." File: ntoskrnl.exe Status: 0xc0000098 Info: Windows failed to load because a required file is missing or corrupt." This occurs straight after the files have loaded, thus I cannot get to the repair part, or check HDD partitions etc. I have tried using both sticks of the RAM seperately, to no avail. I have also unplugged both my HDDs and also tried both of my DVD drives. I have also tried upgrading the BIOS to version 1.4, which doesn't solve the problem. Any help or suggestions would be great, thanks. Here are the new parts to my system: Motherboard: MSI P55-CD53 Intel P55 (Socket 1156) DDR3 Motherboard. CPU:Intel Core i5 750 2.66Ghz (Lynnfield) (Socket LGA1156). RAM: OCZ Obsidian 4GB (2x2GB) DDR3 PC3-12800C9 Dual Channel OCZ3OB1600LV4GK). And I am trying to install Windows 7 64-bit. Thanks, Sasha.