How to install non-trusted security certificates that you want to trust.

Sometimes websites have non-trusted security certificates that you want to trust. In order to do this you'll have to install these certificates, for example, in Windows. Let's start:

Make sure the certificate file came from a trusted source!

Find certificate file you want to install and rename it to <something>.cer, then double click the certificate file (*.cer) or press right mouse button on it and select Install Certificate.

New window with Certificate details will appear.

Click Install Certificate... button. Certificate Import Wizard will start.

Press Next > button.

Select "Place All Certificates in the Following Store" and Click Browse...

If it's a Root CA Certificate Select "Trusted Root Certification Authorities".

If it's a Certificate for a webserver (e.g. www.mydomain.com) Select "Trusted Publishers". Click OK.

Click Next >

Click Finish. Voilà!

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