Hello, slight problem with windows 7 and mice.
Windows doesn't seem to be loading the right drivers for either mouse.
The laser mouse doesn't seem to be detected at all, and the M525's unifying reciever is being detected as a "USB Bootloader".
I've tried some fixes that seems to have worked with others on the internet. Tried a system restore, USB hub/controllers driver uninstall, and a power drain of my laptop with both power cable and battery out. Still no luck.
Both work fine when I load up Kbuntu on the same laptop, so it has to be something with Windows 7.
Any ideas?
I've done this many times to fix weird USB problems. Since your problems are mouse related I would uninstall the mouse if it shows. You can use the keyboard to close windows (Alt+F4) and restart (Windows key, right arrow twice, Restart).