I've been using WindowBlinds 10.84 on Windows version 2004 (OS Build 19041.388).
After changing styles multiple times with WinBlinds, I tried to reset the theme to the original theme of windows 10, so I tried to apply the "default" theme. But some things were not restores, for example, the height of the location bar of file explorer, which was changed to be larger via certain winblind styles, was not restored. Also there is a weird margin between the title bar and the location bar of file explorer.
This is how it currently looks like -- the height of the location bar is somehow enlarged.

For comparison, here is a screenshot taken from my another computer. Here it is the normal height of the location bar. There is virtually no margin between the folder icon and border of the address bar.

What I've done is the following: As I remember, I've switched across several pre-installed themes. While doing that, I checked and unchecked "Always use OS start button rather than ..." option and "Disable ribbon in Explorer windows" and "The taskbar should be sized as follows" to be small taskbar size (but I noticed that this make start bar much thinner than what the Windows 10 functionality "small icons in taskbar" option provides).
What I've tried is thte following:
- Uninstalled WB
- Reinstall WB (either via Object Desktop or via standalone installer) and execute "Purge_WB" as described in https://forums.stardock.com/486023/windowblinds-support-faq#reinstalling
- sfc /scannow
- Perform "Reset My PC" of Windows 10 2004, with the option "keep my files", both WB installed or uninstalled.
But in each time this bug of file explorer was not removed. It is very weird that it is not fixed by Windows reset. Maybe what WB does was contained in some user files? I can still try a full reset of the windows but that is more time consuming.
Developers of this product should know what their program does to the system, can someone provide steps to fix this bug?