ReanimationLP,
Did you have any version of Vista installed before or still have a version installed? I've got the exact same files right here in my \boot\efi\ folder and have never installed XP or MCE on the system. I've only got 2003 Server and Vista installed and those files didn't come from my 2003 install.
Reason I'm also asking is because your files are the exact same size as my Vista \boot\efi\ files, which they wouldn't be since Vista is newer and constantly changing, and windowscodeintegrity.luacdf is not a part of XP/MCE, rather its from Vista.
I also noticed your $RECYCLE.BIN in the main dir and the boot.bak. $RECYCLE.BIN is also a feature from Vista and boot.bak implies you've had more than 1 OS installed since it's made a backup of the boot.ini .
--There is one very easy way for you to check. Take for example the bootmgr.efi , RIGHT-click on it, go to properties, then go to the Version tab, if the version is some form of 6.0.5xxx.x , then its from Vista. Ie. my bootmgr.efi, which is also 374 KB, has this file version number: 6.0.5270.9 , which is from the latest December CTP release of Vista.
Also, though I'm not 100% sure on this part since its been a while since I haven't had a system with Vista installed on it, but the \boot\ folder in general is not even a part of XP/MCE/2003 booting. All the files that I have in the general \boot\ folder are all related to Vista booting.
-Arneh