docs: Clarify installation of GIMP 3.0.0 on Windows

Author: kamilburda

docs/sections/Installation.md

@@ -1,10 +1,10 @@
 ## Requirements
 
-On Windows, Batcher requires [GIMP 3.0.0-RC3](https://download.gimp.org/gimp/v3.0/windows/gimp-3.0.0-RC3-setup.exe). **Batcher currently does not work with GIMP 3.0.0 due to an issue in GIMP.**
+Batcher requires [GIMP 3.0.0](https://www.gimp.org/downloads/) or later.
 
-On Linux and macOS, Batcher requires [GIMP 3.0.0](https://www.gimp.org/downloads/) or later.
+**On Windows, if you installed GIMP 3.0.0 before March 19, 2025, you will need to download and install GIMP again (or update if GIMP offers you the option). If the installer from gimp.org is not updated yet, install GIMP via Microsoft Store. There was originally an issue that prevented several plug-ins, including Batcher, from working.**
 
-If you installed GIMP from an unofficial package, you might need to install Python 3.7 or later.
+If you installed GIMP from an unofficial source (i.e. outside gimp.org), you might need to install Python 3.7 or later separately.
 
 
 ## Download
@@ -16,8 +16,8 @@ Batcher can currently be installed only manually by copying files from a ZIP arc
 
 ## Windows
 
-1. Make sure you install [GIMP 3.0.0-RC3](https://download.gimp.org/gimp/v3.0/windows/gimp-3.0.0-RC3-setup.exe). **Batcher currently does not work with GIMP 3.0.0.**
-2. Make sure you have GIMP installed with support for Python plug-ins.
+1. **If you installed GIMP 3.0.0 before March 19, 2025, you will need to download and install GIMP again (or update if GIMP offers you the option). If the installer from gimp.org is not updated yet, install GIMP via Microsoft Store.** There was originally an issue that prevented several plug-ins, including Batcher, from working.
+2. If you installed GIMP from gimp.org, make sure you enabled support for Python plug-ins (this is checked by default). The Microsoft Store version of GIMP enables Python support automatically.
 3. Locate the folder containing GIMP plug-ins - open GIMP and go to `Edit → Preferences → Folders → Plug-Ins`. If you cannot locate any of the folders on your system, you can add a custom folder. 
 4. Copy the `batcher` folder from the downloaded archive to one of the folders chosen in the previous step. The folder hierarchy should look like this:
     ```

docs/sections/Known Issues.md

@@ -1,3 +1,5 @@
+On Windows, if you installed GIMP 3.0.0 before March 19, 2025, you will need to download and install GIMP again (or update if GIMP offers you the option). If the installer from gimp.org is not updated yet, install GIMP via Microsoft Store. There was originally an issue that prevented several plug-ins, including Batcher, from working.
+
 If the *How to adjust file format options* export option is set to `Interactively`, and you press the Export button, it may seem as though nothing happens.
 In that case, the file format dialog may be displayed behind GIMP.
 If so, simply select the dialog in the taskbar to bring it up.