Hi Andre, First of all, thanks for your superb original post. Basically I have hibernation problems, it often takes minutes - I turn off the lights, I walk to my bed, lay down, etc. and the laptop is still working. Windows Event log shows times of 100..180 or even 300 seconds. I have recorded trace logs of only 45 sec hibernate and 45 sec resume though. Checking the logs I don't see any hogging applications or drivers. What makes me wonder is disk I/O. First of all, there are more I/O reads during a hibernation than writes. Does it make any sense? And on resume, there is a significant amount of writes during reading back the data. The Disk Usage graph says my SSD system drive works at 100% during both hibernation and resume. However, the disk activity LED is far from showing complete utilisation (compared to file copying, for example): it only flashes. Once I managed to get a 15 sec hibernation and 30 sec resume on this same machine, with the same amount of running applications - in this case with no I/O reads during hibernate and almost no writes during resume, and with very low disk utilization during hibernate. Me too have a Dell laptop, Precision M4600, i7-2720QM, 8 GB RAM (usually 2.5 ... 3.5 GB used), mSATA SSD system disk, Windows 7 x64. No external display, but having external USB keyboard and mouse. Do you have any suggestions what else could I check or how could I send you the huge logs?