Sony Vaio shift key strange problem

[Jigs2STR]

i have a 5 years old sony vaio vpcca15fa laptop
i'm having this problem for about a month now when i press shift it outputs some random keys

 

[webworkings]

Try this...

1. Uninstall the keyboard driver.
2. Reboot the computer (without reinstalling the driver).
3. When it restarts, it should reinstall the driver on its own.

If this doesn't work, you may wish to try connecting an external keyboard and see if it works fine. If it does, then it could be the keys themselves that are the issue.

You may also want to try updating the Synaptics Driver if the above doesn't help.