If your organization blocks .exe downloads entirely, try downloading the 7-Zip files on a home computer, saving the folder to a USB drive , and simply plugging it into your work machine. Download - 7-Zip

Double-click the downloaded .paf.exe file. Even though it looks like an installer, it is actually a self-extractor that does not require admin rights.

Visit the official 7-Zip Portable page at PortableApps.com .

If you are more technical, you can download the 7-Zip Extra (standalone console version) from the official site. This comes as a .7z archive. You can use a temporary online extractor to get the 7za.exe file out, then use that command-line tool to extract the full 7-Zip installer into a local folder. Limitations of Non-Admin Usage

Select a folder where you have write access, such as your Downloads folder, Desktop , or a USB drive .

You typically cannot add the "7-Zip" option to the Windows right-click (context) menu because that requires registry access.

Open the newly created folder and double-click 7-ZipPortable.exe (or 7zFM.exe inside the App/7-Zip subfolder) to start using the file manager. Alternative: The "Manual Extraction" Trick