Download otpTOK for Windows. It is very important that you verify that it is the original using MD5 or SHA-256. or SHA-1

Verify original from PowerShell:
Get-FileHash -Path downloaded_file -Algorithm MD5
MD5: 69313375F5E0AA46D21DDD74C88C8C61

Get-FileHash -Path downloaded_file -Algorithm SHA256
SHA-256: D5F07C6B3FBC6D306E6879089DD25414AB99CDAC6C786D346CC261A02B287566

Get-FileHash -Path downloaded_file -Algorithm SHA1
SHA-1:  924953CE6D123F0C21AED463EBA9C569B687D1A9

It is very important that check supported operating system versions at https://otptok.com/downloads before using the application.

Then, unzip the file and follow the steps in README.txt.