Removing Everyone Permissions in Win XP Pro

Hi everyone. I'm new here so I wasn't sure exactly where to post this question but this section seemed logical to me.
I recently used the SysInternals program AccessEnum and discovered that there is a whole list of files and folders in my Windows and System32 folder that have Everyone permissions applied.Most all of them have read and read & execute attributes applied for Everyone. Some of them have the write attribute checked as well. This seemed like a security issue to me. This is on Windows XP Pro SP3. I am the only user of this computer. I'm not on a network and this isn't a server. I don't have any shared folders. When I used AccessEnum I was logged in as administrator. Is there any reason at all that any file or folder on my PC should have any sort of Everyone permissions? If not, is there a quick and easy way to remove the Everyone group from all of them? As it would take me forever and a day to go thru each one individually and remove it.
If I left any important details out let me know what else would be useful to help answer my question. I could include a copy of the AccessEnum log if needed. Any help would be appreciated, thanks in advance.

 

That's perfectly normal, although there should be very few locations where Everyone or Users have Write permissions. Those two directories you mention are protected directories that almost exclusively deny Write permissions to limited users, with only a few sub-directories being a bit more relaxed. Do yourself a favour and leave them alone, or you'll most certainly bring untold grief upon yourself.