I had been using Windows 8 and TortoiseSVN icons have been displaying properly, but after installing Windows 10 I can no longer see the icons for the files/folder status.
I fixed my problems with TortoiseSVN icons not showing up in Windows 10, for the special case where my repository was on a removable drive.
There is a Tortoise setting that determines which Drive Types the icons are used with: Drives A:
and B:
, Removable drives, Network drives, Fixed drives, CD-ROM, RAM drives, and Unknown drives.
It was NOT a problem with the naming of the icon overlays in the Windows Registry.
The names were automatically prefixed with "1", "2", etc.
to force them (in my computer) alphabetically at the top of the list just before the OneDrive icons.
So, all of the icons were within the top 15. To get to the Tortoise settings, right click on Desktop or a folder and then choose TortoiseSVN > Settings.
In Settings, choose Icon Overlays. There'll you find the Drive Types settings.