“With today’s large hard drive sizes, proper disk partitioning and management are more important than ever. That’s why we created PartWork for Windows. PartWork for Windows, part of the BootIt Collection, allows you to easily manage all your partitions and drives directly from Windows, bringing the popular Partition Work tool from the world-renowned BootIt product line right to your Windows desktop.”
It’s BootIt UEFI without having to reboot to the USB. The more I use it, the better I like it. The UI is very good and easy to understand. It isn’t free, but for me it’s well worth the price.
PartWork is part of the BootIt Collection. There’s a fully functional 30 day trial after which it’s US$39.95
[Moderator edit] added price info
[OP edit]Corrected the advertised price (available via the link in the OP) and added pertinent information regarding the free trial version (also available via the link in the OP). In addition, TeraByte does have sales from time to time, so pricing may vary. For example, I got my BootIt® Collection on sale for $29.95, and was able to download PartWork For Windows for free, using my order number for the BootIt® Collection.