Windows 7 - Deleting fonts that are 'in use' but not

I recently bought a Sony Vaio with Windows 7 installed. I decided to transfer several files from my server which I had backed up in preparation for the new laptop.

Unfortunately I ended up transferring my fonts folder which contains more than 10,000 fonts. These got installed into my new fonts folder and this has caused the laptop to slow down anytime I want to use text or fonts (pretty much anytime then).

I thought that deleting the fonts would be easy and would solve the problem, but no matter which fonts I try to delete, Windows won't let me because it claims the file is in use. The tip is to close down any applications that is using the font to enable me to delete it. BUT I have never used the fonts and can't understand how they are being used. Could anyone help or offer advice on how to offload the fonts to bring the speed of my laptop back to standard?

Not at all sure, but have you tried booting from the DVD? It seems as though I recall seeing the ability to use the Command Prompt window there. If so, I think that you could navigate it to the font folder and delete what you will, since the OS itself wouldn't be laying claim to them.

EDIT: Of course, you would need to be able to identify each font by name, since you couldn't see them graphically.

The VAIO i have doesn't come with a DVD. I just don't understand how Windows is 'using' every single font. There's not even any applications open.

Try taking ownership of the fonts folder.

Take Ownership of file - Vista Forums

Go to Back And Restore, and there is a link on the left side to create a recovery disk. If I remember correctly, it has the ability to use a command prompt in the same fashion as the system DVD.

Before trying TakeOwn,,,, If you decide to use this,, use it wisely.

A. Try going into Safe Mode

Shut down PC and let sit for a moment
Turn on and start hitting F8 till you get to a menu
Select Safe Mode and try deleting from there

B. Get an app called Unlocker this will probably resolve the issue with out needing TakeOwn. Just make sure you are getting rid of your fonts and not windows needed fonts.

That wouldn't work on my computer, it would just display the BBS Popup Menu. I have to wait for the second BIOS screen to appear to select F8 and reach the menu in question.

Whenever I want to access my file system without windows interfering, I boot my Ubuntu 9.04 CD. Then everything is wide open for you to work with... or seriously screw up, so be careful.

It also has everything from Mozilla and open Office, to an easy partition manager. I've found it very helpful.