It’s easy, right?ħZip is capable of handling file formats like ISO, NTFS, DMG, and RAR among others. You can now open compressed files and make compressions on any of your files at will. Once the installation finishes, that’s it. Now click on the 7Zip installer and follow the on-screen prompts. The file is really small at around 1.5MB so the download should just take a couple of seconds. Click on which your system type belongs ( 32-bit or 64-bit). Now click to download 7Zip page and find your corresponding Windows system type. Find the “ System Type” and it should state there your Windows architecture. To check which Windows is currently installed on your system, go to the Windows Search service and type in “ System Information.” Once you see it, click on it to launch the System Information window. You should know whether your Windows is running on a 32bit or 64bit version. The first thing you need to do is get the 7Zip file installer for your Windows version.