I get that you want to remove Fedora completely? If so, here it is; if not, this may just be a good guide. First, download a program such as Cute Partition Manager or one of the others, whichever you like. No need to buy one, there are some based on Linux that work great, the name just left me. Anyway, first, download the program, and follow the prompts. If you are using a program such as Acronis Disk Director from inside your Windows OS, start it up, locate the Linux partition(s), and just blow them away. Literally, just delete them. Just make sure there is not vital data on them, first. If you have a program that makes you burn an ISO to a CD or write to a floppy, go ahead and do that, then reboot with the CD and blow away the partitions. Then, when you are done, put in your Vista CD (I hope it is not a recovery CD) and go to the recovery console. Then, rewrite your MBR or boot sector (whatever Linux overwrote) using the recovery console. Instructions from Microsoft are here:http://support.microsoft.com/kb/927392
. Windows should now boot properly. Just be careful not to blow away your Vista or your regular, everyday partitions. As always, back everything up in case something goes haywire. Good luck!