Blender 4 Setup Cannot Write to .rbf file in the Installation Directory

Win10, 64-bit

I have an existing Blender 4 installation. The new version is out so I downloaded it from the website and ran the 64-bit installer. Everything goes well until the middle of the install when I get an error:

Error wring to file <path>\1d43660.rbf. Verify that you have access to that directory.

where <path> is the correct path to the installation folder. The file exists but it’s 0 bytes. Deleting it doesn’t help. Running the installer with administrator privileges doesn’t work, either. Online help suggests that .rbf files are files created by the Windows installer for reversion/uninstall purposes.

Clearly, the installer has worked before since a previous install was successful. Can I not install a new version over an existing install? Do I have to install fresh every time?

I’m not sure about that issue. :thinking:
If this problem is security related, you can install it with administrator privileges.
Alternatively, you can download and use the portable version (blender4.3.zip).