If is nor fn button on my computr what can I do for unlock my mouse an keybord

That depends on the keyboard but usually its fn + f4

On the top of your keyboard there should be F keys like F1,F2 etc.
Every F key has a little picture.When you see a touchpad picture press Fn+F5. According to my Laptop. For example if your touchpad picture is at F6 then you would press Fn+F6.The Fn key should be located near the ctrl keys. If this does not work then try the following steps:-

1 Click the Windows "Start" button in the bottom-left corner of your desktop. Scroll up and click "Control Panel."

2 Choose the "Mouse" icon or type "Mouse" in the field in the upper-right corner. Click the "Enter" button and then click the "Mouse" link.

3 Press the "Hardware" tab or the tab to the right of it that specifies the type of touch pad you have. If you are under the "Hardware" tab, highlight the touch pad in the list of devices and click the "Enable" button. If you are under the touch pad tab, click the enable button.

4 Click the "Apply" button and then click the "OK" button.

Mouse or built-in mouse?

you should try downloading the keyboard drivers from the below mentioned web-site...
http://drivers.softpedia.com/get/KEYBOARD-and-MOUSE/LOGITECH/Logitech-Cordless-Desktop-EX-100-241.shtml

Use the reset buttons

there is a key on your laptop keyboard marked "Fn". and u will see a blue color like touch pad marked key in the top of or keyboard. press Fn key and this marked key simulaniously.mean both key should be pressed at a time. u can do it by pressng Fn key and that marked key generly f3 or f7 depends on manufacturer.

press Fn key it is on keybord find it.then FN + contrsast it is on keybord fing ontrast icon it is on top of keybord.

yes u can remove keybord cheak loose connectons also FN button did u hitthat to stop keybord from working sumtime sthat doe sit hit fn button and try sum keys u can replce the keybord pretty easy get part on ebay install it yourself im open for chat thx nick helpap in saginaw michigan

Windows 3.x help and information Controls:, keyboard / Mouse. operating system:, DOS 3.1 and Higher ... winsetup /h:fn - This is to run an automated Batch Mode Setup.

Good Luck, Please dont for get to Vote/Thank You.

Press and hold Fn+F9 5 3sec...should do the trick