Loss of FN - key after the installation of the updates from Microsoft on L500 security

I am using a satellite L500-19U

After the installation of Microsoft security updates the FN lost their function except the brightness keys + /-function.
also the function keys that appear on the upper border of monitor by pressing the FN key appear after the security packages have been installed.
I solved the problem by removing the update through the function of W7 (Wiederherstellungs punkt) back.

The following security packages are selected to be installed:
Update security for Windows 7 for x 64-based systems (KB978601)
Update security for Windows 7 for x 64-based systems (KB979309)
Update security for Windows 7 for x 64-based systems (KB979683)
Update security for Windows 7 for x 64-based systems (KB980232)
Update security for Windows 7 for x 64-based systems (KB981332)
Windows MRT x 64-April 2010 (KB890830) (malicoius software removal tool)

Which of them are unsuspicios, which must be postponed, the updates are necessary after installation, updates?

Post edited by: JoJo58


If you read about these update on the Microsoft website: (not of them should affect the FN keys)


I checked the history of updates on my computer and all of them are installed with the exception of Windows MRT x 64-April 2010 (KB890830) (malicoius software removal tool). Everything works correctly, try to remove this update.

Tags: Toshiba

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