So you are trying to be a good steward of power, and just want your computer to go to sleep — and stay asleep — until you explicitly ask it to awaken. Is that too much to ask?
Well, no, it isn’t! And here’s the easy solution.
1. Find your mouse driver
First thing is to find your mouse driver. As is common in Windows, there are many ways to find the driver. One way in Windows 7 for example, is to go here:
Start > Control panel > Mouse
2. Find Power Management tab
Go to Hardware > Properties > Change Settings > Power Management
3. Disable wake
Uncheck “Allow this device to wake the computer”
That’s it! You are done! Well, almost.
4. If you happen to have a unifying receiver (like a Logitech) or bluetooth receiver, the receiver likely adds both a Mouse and a Keyboard, maybe even more. If that is the case, you’ll also need to find the corresponding keyboard driver entry using the same technique as above. Then you’ll be done.
I’ve avoided adding specific images because each installation will be different.