If your computer is constantly freezing or if it won't even boot you're either the victim of a malicious software attack (viruses, trojans, intrusions etc.) or the hardware has failed. We offer a range of services to deal with all disaster scenarios:
If you hard drive has completely failed mechanically and refuses to start when powered we would refer you to a data recovery specialist as this requires disassembling the disk under laboratory conditions.
Your hard drive can be partitioned for installation of Windows & Linux in a dual boot configuration. Since Windows is the most vulnerable to degradation, virus infection and general failure you can, with this setup, boot into Linux to assist recovery from any problems affecting your Windows installation. Better still, install Linux on a second disk where it can operate outside your Windows environment and remain completely stable.