Hi Hamid_sk2003,
Thank you for visiting Sony Community!
Are you sure you are hitting the right keys? I am sorry but I'm not quite sure what is seems to be the main issue here. First, I want you to know that VPCCW1LFX came with Windows 7 operating system and no Windows 10 drivers and software are available for this model. We do not even recommend upgrading this to Windows 10.
"when I press 5 key the webpage will refresh" - You might hitting the F5 key instead of just the number '5'. F5 is the shortcut for 'refresh'.
" when press p incept element will appear,when press fn+5 it will work and type number 5. " - I am not quite sure about your statement here.
What I am suggesting here is to run Windows Update to download and install the latest drivers/software from Microsoft. This will also minimize and resolve certain software-related issues you may encounter. If you will encounter issues again, you have the option to perform a full format recovery. Again, no drivers will support Windows 10 operating system for this unit.
For further assistance regarding your concern, please contact the Sony offices/Sony representative offices nearest to your place of residence in Asia Pacific region http://www.sony-asia.com/countryselector.html?hpid=countryselector:AsiaPacific. Due to proximity, they are in a better position to respond to your questions or concerns.
Regards,
Vincent
If my post answers your question, please mark it as "Accept as Solution"