DesktopServer – Create locally installed WordPress Websites › Forums › Public Discussions › Update Theme › Reply To: Update Theme
When you are using DesktopServer the site is actually plain files and folders on your windows installation. I will make a wild guess that your site is living in “C:\Users\*YourUserName*\Documents\Websites” =)
Just browse the folders there and you’ll find the same structure (including the themes folder) as on your regular server.
Replace/install the files manually by copy/pasting OR use the regular WordPress “upload” features to install plugins and themes.
I hope this helps =)