Win + r. and type “certmgr.msc”

Then, delete 3 items :

R3 Certificate and DST ROOT CA X3 To delete, just win + r “certmgr.msc” then go thru :

    **Trusted Root Certification Authorities > Certificates**
    **Intermediate Certification Authorities > Certificates**
    **Third-party root Certification Authorities > Certificates**

Right click, and press delete

To locate the right certificate : Just use Issued By and Expiration Date, search for certificate issued by DST ROOT CA X3, and expired around 29-30 sept 2021.

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Install new certificate : Download this : <https://letsencrypt.org/certs/isrgrootx1.der> 8 Double click it.

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Then, Choose Local Machine, Next Choose Place all Certificates in the following store, and then choose “Trusted Root Certification Authorities” folder Restart your PC