Pro micro driver problem

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hi :)

i can't remember how did it, got pro micro set on development pc. initially, followed guide: https://learn.sparkfun.com/tutorials/pro-micro--fio-v3-hookup-guide/installing-windows.

on same pc made sketch uses mouse lib send small, infrequent mouse movements keep pc going sleep. works fine on pc.

it doesn't work, however, if plug other pc. tried on second pc (win 7 ultimate x64 - same development pc) , on work laptop (win 7 enerprise x64).
the message usb device not recognized. in device manager it's listed "unknown device" under universal serial bus controllers.

why need driver anyway make "native mouse" work? don't need drivers regular mice or keyboards...

if try installing driver sparkfun guide message "the best driver software device installed". tried using "has disk" option , selecting driver file explicitly none of .inf files in archive sparkfun accepted.

any ideas?

if clone arduino may still need install driver.
probably ch340 or ch341

maybe try them first , see if help.


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