Our SSL Converter allows you to quickly and easily convert SSL Certificates into 6 formats such as PEM, DER, PKCS#7, P7B, PKCS#12 and PFX. Depending on the server configuration (Windows, Apache, Java), it may be necessary to convert your SSL certificates from one format to another.
If one of your certificates is not in the correct format, please use our SSL converter: windows offline update
How to use the SSL converter, just select your certificate file and its current format type or drag the file extension so that the converter detects the certificate type, then select the certificate type you want to convert it to and click on Convert Certificate. For certificates with private keys select the file in the dedicated field and type your password if necessary. For more information about the different types of SSL certificates and how you can convert certificates on your computer using OpenSSL, you will find all the necessary information below. # Offline install using extracted wsusoffline client folder
# Offline install using extracted wsusoffline client folder $updatePath = "D:\client\cmd" Set-Location $updatePath .\UpdateInstaller.exe --update --verify --autoreboot --log C:\Logs\offline-update.log
sigcheck -i -h D:\client\wsus\*\.msu (Requires Sysinternals Sigcheck – copy once offline) This report is based on Microsoft documentation and community-tested procedures as of April 2026. Always test in a non-production offline sandbox first.
# Offline install using extracted wsusoffline client folder $updatePath = "D:\client\cmd" Set-Location $updatePath .\UpdateInstaller.exe --update --verify --autoreboot --log C:\Logs\offline-update.log
sigcheck -i -h D:\client\wsus\*\.msu (Requires Sysinternals Sigcheck – copy once offline) This report is based on Microsoft documentation and community-tested procedures as of April 2026. Always test in a non-production offline sandbox first.
Check if your website can be hacked
Did you know?
An SSL/TLS certificate does not protect your website from all dangers, it only secures the exchange of data between your site and your customers.
In order to verify that your site is secure, check for free if your website can be hacked!
