This method will stop people from disabling System Restore.

1. Go to Run (Start->Run)
2. Type gpedit.msc and click Enter
3. On the left in the Computer Configuration go to Administrative Templates then System then System Restore.
4. Double click on the Turn off System Restore on the screen on the right and choose Enable.

Check if it's working.
Go to System Properties (Control Panel -> System) and to tab System Restore
The 'Turn off System Restore' should be now 'unclickable'

To make sure that system restore is really turned off, go to start > run type services.msc and hit enter. Scroll down to system restore services and double click. In the pop up window make sure to change startup type to "disabled" and hit ok. Restart your computer.

Not recommended to you disable the system restore, the system restore is very important.

Here's how to disable disabling it, not to disable the thing itself.

But I don't think it's actually usable in any areas except for public computers; you're not going to do that to yourself.

Yeah, honestly I don't see the point of "system restore". Sure it's there so that "in case of a malfunction we can fix your computer back to how it was" but by experience that's NOT how it works. Nearly any issue I've ever had could not be fixed by using system restore.

Why? Because it only backs up certain files. It would be much, much more helpful if it were to create an encrypted image file of your computer, like on another hard drive. That would keep virii from infecting it, along with allowing you do to a REAL restore.

The one with Windows is just a waste of time and space I feel.