I upgraded my win XP with Win 7 and when I did my ability to set it on standby or sleep went away. I'm also having problems shutting down. Sometimes it will shut down okay and at other times it get hung up and won't shut down. I have to do a cold boot to shut it down. Thanks in advance for your help. Rigsma

In Win xp u have this problems??? If dont i recommend to format and reinstall the system operating. Because sounds like ACPI problems. RegardsI want to be a MVP! | Computer Technician - MCP

Hi, What’s the symptom after you click Standby or Sleep? If computer cannot sleep or standby, try to check event log and collect power report. (powercfg –ENERGY - Windows 7 – Power Management Reports ; Using PowerCfg to Evaluate System Energy Efficiency) If computer wake up in a short time: 1. Open a command prompt and run the command powercfg -devicequery wake_armed The command will list all the devices which can wake up computer. 2. Try to disable each of these devices above one by one and test the problem until you find the culprit that is waking up the computer. powercfg -devicedisablewake "device name" 3. Once you find the one that is causing problems, you can re-enable the other devices. powercfg -deviceenablewake "device name" Hope it helps! Regards, MiyaThis posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.