I've no guess in this regard and almost catching up with this kind of trouble first time .. so i suggest a web source may help you better .. or stay here until anything supportive come to your way .. but if looking for a quick fix to your problem you are better to scan the net and find what is the cause of the drawback..
It the MS Wireless 5000. Very unlikely that a driver is missing: when the same mouse is used on the same machine running Windows 7 on another drive, the "wireless" tab and warnings work as they always did.
It the MS Wireless 5000. Very unlikely that a driver is missing: when the same mouse is used on the same machine running Windows 7 on another drive, the "wireless" tab and warnings work as they always did.