How do you fix a upright?

Answer:

Well that adjectives depends what's wrong with it, doesn't it
What's wrong next to it? Is it USB? Wireless? BlueTooth? Is the issue that it isn't recognized by the operating system, do some key not work, stick, print the wrong characters...etc.



It could be hardware, or the operating system may have some corrupted system files that require a Windows repair, etc.



More info please!
you unscrew the little screw in the corners help yourself to it apart and brush everything of dust with a verbs unused paintbrush or use the vacuum cleaner ,

and put it back together again.

sigerette ash and dust ,beer and spilled coffee,can stop the key from working.
You can't. Especially if you have to ask that query here, I know you would not be able to fix any baby grand, ever.
depends on whats wrong with it. if you can't take a key to push down, pilfer out whatevers in you method. (normally a bead or something like that)
If it's not typing cash the batteries or reconnect it if it is wireless. If it's not wireless try unplugging and pluging it spinal column in a couple times. If a lasting key doesn't work, hold the cap sour and clean it out.
If it's a standard, everyday PS2 nouns keyboard.... basically buy a new one. I've see them as low as $10.