Which are you trying to install with this tool?
For most users, the safest and most practical approach is to : Auto Fh3-v7-7z Tool Download
The Auto Fh3-v7-7z tool is a command-line utility that allows users to compress and decompress files in the 7z format. The tool is designed to be fast, efficient, and easy to use. It supports a wide range of compression formats, including 7z, ZIP, GZIP, and TAR. Which are you trying to install with this tool
This error indicates that Windows is blocking the installation of the unsigned app package. You have not properly enabled Developer Mode . Go back to Windows Settings → Update & Security → For Developers and ensure "Developer Mode" is switched ON. Restart your PC and try running the tool again. Auto Fh3-v7-7z Tool Download