I think this folder was created with PowerISO as it is related to BCD (BootCD). Has one executable "Memtest" and a bunch of log files.
That's used by the BCD (Boot configuration data). You really shouldn't be messing with that directory unless you're using a different operating system's boot loader, say Grub or whatever. If you're not, you can make your system unbootable.
That's wierd as this folder is not on my laptop. It's just on my main box. I've got a modded bios's on both.
Does the one machine have that little hidden partition that 7 tends to create by default? Might be on there.. every system I've put Vista or 7 on has the BCD data, be it BIOS modded, softmod, or even one of the laptops that's (gasp) legitimate as it came with 7. I'm not positive; I typically use a BSD liveCD to do my partitioning.
Under Administrative Tools, either in the control panel or on the start menu if you enabled it, go to "Computer Management". On that window, left side near the bottom, hit "Disk Management". That'll bring up Window's partition editor. Again, no idea if Windows stores BCD data on that or not, it's just a guess. (Assuming you have hidden and system files turned on in Explorer.) Most of my systems dual boot into either BSD or Linux, and I typically do the partitioning by hand.
Why do you want to delete C:\boot??? You'll lose the ability to use the "Repair Computer" in ur WinBootMgr and to boot the OS itself. Well if u still want to delete the folder use a Linux-LiveCD.
C:\boot is a hidden directory; purposely done so by windows 7, so as not to be tinkered with by inquisitive minds. Leave it that way.....