My "power options" are set to "never" for "turn off display" and "put computer to sleep" but if I leave the room for more than ten minutes, the PC shuts down. How can this be changed?
These links contain solutions for different variations on this theme.
Run the power troubleshooter first of all
If the settings you put in are not shown in the power plan advanced options then look at this one next
When you configure power options for the active power plan in Windows Vista or in Windows 7, the changes are not reflected in the Power Options item in Control Panel
If that does not help then run the System File Checker to fix any corrupt files in Win7
Finally, check your hardware compatibility
and check the entries in Device manager for any warnings, then try to update drivers.
If you still have a problem then there are lots of other threads in the forum about power plans. So I hope the previous steps sorted things out.
Do reply with progress, updated symptoms etc. It's always worth stating the Win7 version and whether it's an upgraded computer as well as what the computer is.
Did this solve your problem?
Sorry this didn't help.