Some Cookies you may want to keep as they let you auto-logon to your favorite websites.
The rest of the TIF can be deleted if you want to.
I find it easier to set I.E. to Empty Temporary Internet Files folder when browser is closed from the Advanced tab.
Have XP Pro, Intel. Pentium 4
512 MB Ram
In the internet properties box under temp files-settings-view objects: can these files there be safely deleted as they build up?

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