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Message: [QUOTE="Jan Schejbal, post: 13049059"] Hi, I am experiencing a weird hibernation issue. My hardware (acer notebook) supports hibernation and it worked great for a long time. However, "suddenly" within the last few weeks, it started to lock up when going into hibernate or stand-by mode. It locks up *almost* every time, either at the "preparing to standby/hibernate" screen or just after it - the screen goes black, but the backlight stays on and nothing more happens. Same issue both with hibernation and standby. I already disabled and reenabled hibernation to recreate hiberfil.sys, which did not help. I do not know about changing anything that could cause such a thing, but I did do windows updates. I also connected and disconnected different USB devices, but the crash happens even if only those devices are plugged that were plugged in months ago where it worked. I am running XP Home german with TrueCrypt full system encryption and Avira AntiVir (and a lot of other stuff). Hardware driver updates are not availible fot this system anymore. Event log shows NOTHING anywhere near the lockup (maybe doen't get flushed to disk). dumppo.exe shows max sleep state S3 but "hibernate" is availible in the shutdown menu. I don't know what it showed before this started to happen. Any magic ideas what could cause this? Sincerely Jan [/QUOTE]