I have a directory under 'C:\Windows\' called 'Temporary Internet Files'
which has about 30MB worth of files - spread among 4 sub folders under this
directory. I believe they are used for Internet Explorer caching. I also
see that my 'Scheduled Tasks' settings for deleting temp files includes
these 'temp' files for cleanup, but on running the cleanup manually they are not deleted.

Do you have any idea why they weren't deleted?

Also, am I able to just delete them all manually (I'm assuming more will be created as I access future web sites)?

I look forward to hearing from you,