Install 7-Zip

7-Zip for Windows PCs

Before installing 7-Zip, find out if your version of Windows is 32-bit or 64-bit.  7-Zip has separate software for each version.

How can I tell if my computer is running a 32-bit or 64-bit version of Windows?

Microsoft explains here.

Next step -- download and install the appropriate version of 7-Zip 

7-Zip software Check sums
Here is the 32-bit version Checksums for: 7z1512.exe
  • MD5: 73d2eddfac7d53dc8dc6c59515fb9df1
  • SHA-1: 455b0b1d6fed51a085dfbdc1ffb7978cc6aff1a2
  • SHA-256: e6ee2af8276f10cb02ebb350d62e9851d4ca8d6719ac86716b01948354093584
Here is the 64-bit version Checksums for: 7z1512-x64.exe
  • MD5: 822b366bb37a9628cafff5bfaf186998
  • SHA-1: 8017f7a6194c356b49e82c14a03d2d84e0c40523
  • SHA-256: 7ccca4989772c7ccd0ce6da30832365530011baa050beb727613dca6abce6d92

    7-Zip

    Set the file associations to recognise 7-Zip

    If you are running Windows Vista or higher, you should set the file associations to recognise 7-Zip.

    1. Locate 7-Zip File Manager.
    2. Use the Search function built in to Windows (search for 7-Zip) OR Click the Start button Right click on 7-Zip File Manager and click on the Run as administrator option.
    3. In 7-Zip File Manager, click the Tools menu and then click Options.
    4. On the System tab locate and highlight "7Z", tick and then click the + button above All users.

    7 zip file associations

    7 Zip file associations

       

      Troubleshooting

      Common issues are explained here.