Hello, I have run into an issue here where I am unable to boot my system anymore. It began when I decided to give the disk compression tool a whirl since I thought it may speed up my system a bit...1st mistake. Since it takes about a million and 15 days to complete I cancelled the operation...2nd mistake. Now when I reboot my system I get the error message BOOTMGR compressed press Ctrl + Alt + Delete to restart. OK, I've seen boot errors before, just pop in a recovery CD and we're good to go, right? Apparently not in my case. My system refuses to boot from CD-ROM. I do have it set to boot first from CD-ROM in my BIOS so that is not the issue. I also noticed something else in my POST screen, it shows my that I have NO Primary or Slave disks! The BIOS either does not see them or will not recognize them for some reason anymore. I have tried multiple recovery disks and have tested them on clean systems and they contain the bootable data need to start my system so I am at a loss here as to what to do. My computer was working fine and dandy just before I tried to mess with the compression tool, so I don't think it's a hardware issue. I do not have a new copy of Windows 7 nor do I really wish to purchase one if my system will not see it. But I will buy one if you truly believe it will do the trick, I suppose I could always install it on another computer if I needed too since I really wouldn't be installing it on this one, only repairing it correct? My specs are as follows: Originally it was a Acer Aspire M5640 that came pre-installed with Vista but I installed Windows 7 & a while ago and have since lost the original CD when I moved or it was stolen but that's a moot point now, it's gone. I have also installed a new motherboard in my system last year when the old one died on me. The motherboard is a Gigabyte S-Series Model# GA-73PVM-S2H Processor is a Intel Dual Core 250 GB SATA HD Super Multi Drive 3GB DDR2 Memory If all else fails I just want to be able to save some photos on the old drive to a new drive if I can't fix this one, I am assuming a generic SATA to USB cable will work to transfer files even if the boot manager is corrupted?