Check the "Issued by" and "Issued to" fields. It should say "Team R2R" or "Duplicator." If it says something like "Microsoft Root Authority" (scammers sometimes rename viruses), do not proceed.
Click Next , then Finish . A success dialog will appear: "The import was successful." install team r2r root certificate
You now know exactly how to install it manually (Method B), how to fix the errors, and most importantly, how to remove it when you are done. Check the "Issued by" and "Issued to" fields
Double-click the .cer file. A window titled "Certificate" will pop up. do not proceed. Click Next