NO PC stated, (wow1)
NO OS stated (XP , VISTA , what?) Never post lacking this KEY FACTS. or you force the helper to GUESS.! (wrong)
wireless has many problems in this domain. (wireless most)(BLUTOOTH ORE OTHER WISE)
as do matching drivers to the mouse on unstated PC.
why post lacking what you own there, in total>?
EG: PC HP DV7-1234US, RUNNING XP 32BIT, SP3 LOADED
INTERNET WORKS ! NOW. OR WHAT?
this mouse has HP support on XP./VISTA and windows. 32 or 64bit
that is in fact 6 drivers total and NO MORE.
so go there get them (1 of 6) and load it?
get it while not delete, as it surely will be SOON.https://support.hp.com/us-en/drivers/selfservice/hp-wireless-eco-comfort-mobile-mouse/3840767/model/3840433
the mouse can be bad. too. (clean it? yet)
or the USB port dead.
so try all usb ports see if the driver loads.
try mouse on other PC. W7 bet the best PC to get it working
as W7 has full support end to end, not older OS of any kind.
if using XP or VISTA the Microsoft servers are shut down now
for drivers, (not updates ,old) but they are killing online PnP support.
last month i tested this and 1/2 are gone, (roughly and MS told me so)
lets say you run W7
so try all usb ports
then make sure you are internet connected, or PnP will be DEAD
and the poor thing cant load unknown drivers lacking an internet connection (unless i teach you how to force load them and will not now)
If the mouse fails on W7 machine, with usb ports working
the MOUSE is END OF LIFE.
buy a new one for $5 off fleabay,? splurge?
IF RUNNING XP (WHY) MAKE SURE SERVICE PACK 3 IS LOADED
OR ITS ALL JUST BAD TO THE BONE, END TO END.