The accessibility settings in Windows are worth looking at.
For instance, when I’m “off” I type with one finger, which is a problem if you want to type a capital letter. You can get around this in Windows 10 (I suspect it’s much the same in all versions) by doing the following once (thereafter it will be remembered until you choose to change it back):
Start (icon normally bottom left)
Control Panel
Ease of Access
Ease of Access Center
Make the keyboard easier to use
Turn on Sticky Keys
Apply
Now to type $, say, you press shift and let it go. Then, when you press the 4 key, you get “upper case 4”, which is $, as required.
This setting makes more than the shift key sticky. For instance, the Ctrl key is sticky, so to save a file, you can press the Ctrl key followed by s; the Alt key is sticky, so to close a window you can press the Alt key followed by the F4 key; the Windows key (the key on the bottom row that looks like a flag in a circle) is sticky, so to move a window to the left press the Windows key followed by the left arrow key.
I also have problems with keys being wrongly repeated. For instance, I want to type the word forum but I get fooorum. Or when going back to correct the mistake I overrun, deleting good text as well as bad. To reduce this problem, you can slow the speed at which the cursor moves. From where we were above:
Click on Set up Repeat Keys and Slow Keys and change accordingly.
For more ideas see:
John