The Hospital I am working at recently purchased few HP Slate Tablet PCs which are running 32-bit Windows 7 Operating System. They were working perfectly fine until yesterday. From yesterday night 2 HP Slate tablet PCs have started malfunctioning. They have started booting up into the Windows Partition and then freezing there completely. This happens every now and then. The only thing we can do then is to Hard-Power them down. Does anyone know what could be the reason behind this problem? Please help me.