Removing Linux dual boot

[#1]

How do you remove a linux partition and the grub loader under windows 7.  It was quite easy under xp.  I have removed it once before but I cannot remember.
Thanks

[#2]

Two words
Partition Magic
or create a windows startup / boot disk and use fdisk
look here

[#3]

Boot into the recovery console and run FIXMBR
B.

[#4]

Yes, have always done (on Vista) as Barry says.  Must be done before deleting the partition (if that is what you are going to do).
In Vista this has worked for me:
Put the disk in the drive
Safe mode with command prompt, type in BootRec.exe /FixMbr and it has repaired in a few seconds.
Here is more information specifically for W7:
http://support.microsoft.com/kb/927392
http://pcsupport.about.com/od/toolsofthetrade/ss/windows-7-startup-repair.htm
http://www.sevenforums.com/tutorials/681-startup-repair.html