Letter 'F' Help required !

[ASA 007]

When typing e-mails, but also at other times typing stuff, when I use the letter 'F' it takes the cursor up to the top of the page, or worse sends it to the middle of paragraphs. It's driving me mad. When I am typing long e-mails and don't look up for a while and have hit 'f', I find myself halfway in between words and have to delete sentences back on myself . It is extremely frustrating. Sometimes it will place me off page, I have been typing away just to find I am not even on the page. At present I have to hold down the function key and press 'f' together, but that's only when I do remember.
Can someone please suggest a way to fix this, thank you.

 

[Laptop_Nerd]

Hi,

Just to be safe start by doing a complete virus/malware clean up.

Here's a link that you can use that has tools and tutorials in it.
http://www.tomsguide.com/faq/id-1691891/removing-malware-proven-completely-remove-bitcoin-mining-malware.html

After the clean up please do try these troubleshooting steps to identify the issue or help you resolve the issue.
- Check keyboard language settings.
- Open Control Panel and look for Region and Language.
- Check all tabs if they are all set to United States.
- If that doesn't work, try pressing those following keys which are not working using your onscreen keyboard (Ease of Access look for Onscreen keyboard)
- Connect an external keyboard and see if the same problem will persist because if does you may need to consider on doing a complete Factory Reset cause it's a problem with your operating system.
- If all those keys are working just fine using an external keyboard it's time to replace the keyboard.