Reality: Older versions (pre-6.0) used SHA-1 certificates, which are now deprecated. Modern Windows rejects them. Downgrading is a security risk and often fails worse.
F. Reinstall or repair Windows Root Certificate Program Reality: Older versions (pre-6
certutil -addstore "Root" C:\Path\To\Your\DownloadedCertificate.cer Use code with caution. right-click on Command Prompt
Click the Start menu, type cmd , right-click on Command Prompt , and choose Run as Administrator . and choose Run as Administrator .