790 B
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.
Install new certificate : Download this : https://letsencrypt.org/certs/isrgrootx1.der 8 Double click it. Then, Choose Local Machine, Next Choose Place all Certificates in the following store, and then choose “Trusted Root Certification Authorities” folder Restart your PC