I can't play YouTube videos..

They load completely fine, but when I click play I get nothing, no movement, no sound, nothing. Anyone know how to fix it?

EDIT: Make that any streaming video.

Browser?

Mozilla Firefox running on Windows XP with a computer which needs a new harddrive because this one is full

Have you tried it in IE?

My IE stopped working about a month ago

I would try to clean out the hard drive, defrag it, and try again

These are no doubt completely unrelated

I'd go to the Control Panel and uninstall Flash Player.

Then reboot and reinstall Flash Player:

https://www.adobe.com/products/flashplayer/

damn it, I was just thinking of saying that, after my previous post, beat me to it

I'm just going to do some scans and cleanups... My antivirus makes me do it weekly, but I can never be bothered I just realised the icon thiny is red.
If that doesn't work then I'll do what Jonny said.

Okie dokie

This is taking too long, I'm bored of it now

awww you should of done just a clean by right clicking the hard drive, and selecting properties, there should be a button next to the pie chart of your hard drive

No, that takes too long too

No it shouldn't, should only take a couple of minutes, unless you have installed/uninstalled quite alot

Yay it finished! And told me that I don't even have the necessary 15% disc space needed..