Sure you can on the Yamaha Corporation web site.
Go to www.yamaha.com, click on the "USA" link under "Musical Instruments", search for PSR1100 and click on the link that says downloads. You will see various USB driver downloads. Choose the appropriate one.
(I didn't provide a direct link because it's so long. But it's easy to find.) :-)
Jan 05, 2009 Rating
thank you by: Anonymous
We lost our driver and found through this suggestion thank you very much.
Jan 05, 2009 Rating
You're welcome. by: Mantius
You're welcome.
Feb 22, 2009 Rating
driver by: olivier
yamaha psr 1100 driver
May 24, 2009 Rating
psr1100 by: mam
goooood very gooooooood i like that , i want bank
Jun 05, 2009 Rating
THANKS by: Anonymous
excelent..... thanks
Jul 16, 2009 Rating
exe file missing by: Anonymous
the setup.exe file is missing in the zip file
Aug 12, 2009 Rating
how to download the yamaha psr1100 driver by: ARUL
how to download the yamaha psr1100 driver
Oct 21, 2009 Rating
Doesn't work by: Musicus
That doesn't work for me... Even it's a long link/url, can you please just put it here...
Dec 06, 2009 Rating
Deleted by: Anonymous
Recently Yamaha™ Have Been Updating Their Systems, And The PSR1100 Software Is, *AHEM* Unfortunately, No Longer There.
