I just tried to install the Giveaway of the Day - Paragon Virtualization Manager 2009 Personal on an older system running Windows 2000 Pro (listed as compatible in the System Requirements). It went through the installation without a problem, then asked to Restart the system. I clicked yes and Rebooted, but now it reboots every time I log in and before the desktop loads. I went through the reboot cycle a number times to make sure it wasn't just a normal part of the install. I tried booting into safe mode with F8, and then I got a Blue Screen error STOP:0x0000000A IRQL_NOT_LESS_OR_EQUAL from ntoskrnl.exe. I tried F8 Last Known Good Configuration and it just went into the Reboot cycle again. Any advice is welcome. I would like to uninstall Paragon Virtualization Manager and repair my system, so I can boot into Windows and use the system normally again. From the Blue Screen error, my first guess is that Paragon VM tried to install a virtual hard ware driver which conflicts with my actual hardware and IRQ settings. I expect there might also be a Paragon VM Service running that could be causing a problem. What's the best way to get into the system and undo the IRQ conflict and uninstall this software without being able to boot into the system? I have used Bart PE and other boot disks before, but I'm not sure what is the best approach to undo the conflict/damage caused by Paragon and uninstall without causing more problems. Can I look at the Services.msc and disable services and startup items from a Boot disc? Any advice or links to help would be greatly appreciated.