Step 11:
Windows Setup should see your Linux partition(s) but will be unable to use them so click on "Drive Options (advanced)"
Step 12:
Select each Linux partition and click "Delete"
Step 13:
Click OK when warned about data loss (you want to remove Linux after all)
Step 14:
You should now have an unpartitioned (unallocated) disk. Click "New"
Step 15:
Allocate the full disk to Windows
(Note: if you have a large hard disk, you may want to split it up at this point into a Windows partition and a data partition but this is not part of this tutorial)
Step 16:
Select your Primary partition and click Next
Step 17:
Wait while Windows is copied to the disk