Keyboard - Keys Suddenly Start Showing The Wrong Symbol

This problem has occurred several times for apparently no reason.
The web gives many links that propose a number of surgeries.
Every single time it has happened to me, a simple restart has cured it.

 

You told us nothing about the computer. We don't even know if a notebook with an integrated keyboard, or a PC. Windows 7 or W10?

Have you tried a different keyboard. Is the cable tight?

Instead of restarting, do a "cold" reboot. By “cold”, I mean shut down the computer and flip the master power switch on the back of the power supply (if your supply has one) to off (or “0”) or unplug the power supply from the wall for about 15 seconds. Then turn the master power switch to on (or “1”) or reconnect power and boot up and see what happens. By totally removing power, you remove the +5Vsb standby voltage all ATX Form Factor power supplies are required to supply whenever the power supply is plugged into the wall and (if applicable) the master power switch is set to on. This standby voltage is distributed throughout several points on the motherboard, including RAM for faster boots and the USB ports too. This also keeps alive several features, including “wake on keyboard” and “wake on mouse”, and the network interface for “Wake on LAN” commands. A cold reboot ensures any device settings that may be held by the standby voltage are released, then reset when power is restored.

On a notebook, a "cold" reboot requires a complete shutdown of Windows, closing the lid, unplugging the charger and removing the battery for about a minute. Then reversing the steps to boot.

Check your language: How to change system language on Windows 10 | Windows Central

 

No need to explore, my restart does the trick OK every time - so simple, why go to any more trouble.
Why it happens - who knows - life is too short to find out.

 

Explore? I never said anything about Explore. And if you are happy with doing a restart every time, I don't see why you bothered to post your problem here and waste everyone's time (since life is too short!) if not willing to try offered suggestions.

 

I have not wasted everybody's time - you may just recognise that a Forum is a platform for passing on knowledge and information. That is exactly what I did. Anybody who feels my posts are a waste of time can always pass on by.

 

A cavalier attitude if ever I saw one printed down so well! I think instead that free time is a terrible thing to waste. Shall I pass you on by?

 

Actually, if this is your all-in-one,.......there's probably not much (short of surgeries) you can do 'cept maybe turning over to shake things around or maybe some dust spray to clean it. But neither will move the characters around, so I guess your only hope is that re-boot will always fix it. An All-N-One makes it tougher!

 

You are now on my Ignore list

 

No you didn't. What knowledge? What information?

A simple reboot fixes many problems. But a simple reboot is not a fix if the problem keeps returning.

This would be like you complaining your tire keeps going flat for no apparent reason. You did some research and found there are several possible fixes from using a patch, or a plug to fix the leak. To just replacing the tire if it really worn or too badly damaged.

But instead, you put air in it and, voila! Its no longer flat and you are so proud of yourself for fixing your tire, you run around and tell everyone you fixed your tire.

But then next week, the tire is flat again.
So you put air in it and voila! Its no longer flat and you are so proud of yourself for fixing your tire.
Then next week, the tire is flat again.
So you put air in it.

Did you fix the tire? Did your fix help anyone else who has a tire that keeps going flat?