SOURCE: Embedded numeric keypad
To toggle the embedded numberic keypad Hold down the blue Fn (function) key and press NumLk.
SOURCE: FN + F11 "turned on" at boot up
This feature is turned on and off in the system BIOS.
During startup, hit either the DEL or the F2 key to enter the setup.
Read through the items found there until you find the keyboard options.
good luck.
tony
SOURCE: May 22, 2010 Using Fn + f7 to unlock Acer 5100 Asp...
There're no free support. Acer will charge $60 for a 30 minutes phone consultation. $200 for unlimited consultation. They will fix it if it's still under warranty. You can also send it to their repair center. It will cost probably $200 also for them to fix it. Try this:
1. go to device manager
2. Highlite USB host controller
3. Click On the "Action" Tab at the top
4. Click on "Scan for harware changes"
5. Restart your laptop.
Let me know how you make out. Good luck! :)
SOURCE: acer aspire model 5742z-4646 embedded
try to disable from the bios
normally has pheonix bios
try
https://computinghardware.web.cern.ch/ComputingHardware/doc/NEC/M360-UserGuide/um/BIOS_KW3_rev1_01.pdf
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