How to delete Recovery Partition?

Hello toll78!

You can go to the disk management and format the partition by doing a right click in top of the partition that you want to delete,  as you can see on the picture, after that it will appear as an unallocated space.

If you want to add the unallocated space to your primary partition you have to do a right click in top of the primary partition and select extend volume.

I can't delete it for some reason because it doesn't seem to have a drive letter and when I right click it, the Delete Volume button is greyed out. Any Ideas?

The simplest way I have found to deal with partitions in Windows is to use Ubuntu.  Download an ISO of the latest desktop version of Ubuntu Linux and burn it to a CD.  Boot from the Ubuntu CD and choose the option to "Try Ubuntu".  This runs Ubuntu directly from the CD without installing anything on your local hard drive.  In Ubuntu , click the top left button and type "partition" to locate the GParted partition editor.  This will give you a very self explanatory GUI app that will delete, move and resize any partition on your connected hard drive(s).

I frequently use Linux for stuff like this and it works great for that, but many customers struggle with things we don't regard as being difficult. Even something as simple as burning an ISO can be seen as a challenge.