If you've used the compression option baked into Windows ... plus 256-bit AES encryption, WinRAR is an essential app and is available in 32- and 64-bit versions. Paragon Backup and Recovery ...

Click the "WinRAR x86 (32 bit) 4.20" link if you use the 32-bit version of Windows; otherwise, click "WinRAR x64 (64 bit) 4.20" to download the 64-bit version. Click "Save File" to save the file ...