To generate these passwords you need to use KeyGen, a free application for Windows with which you can create secure passwords that will protect your accounts or encript your files and maintain your privacy.
This applicaiton is easy to use. You only have to configure "rules" to generate your password. These "rules" have the number of characters the password should have, the existence of capital and small letters in the same password or the appearance of special characters such as punctuation marks or accents.
All these features make KeyGen an excellent tool that is worth having.