fiddler certufucate error

Fiddler certificate errors can occur due to various reasons. One common reason is when Fiddler intercepts HTTPS traffic and uses its own root certificate to decrypt it. However, some applications may not trust Fiddler's certificate, resulting in certificate errors. To resolve this issue, you can try the following steps:

1. Make sure you have the latest version of Fiddler installed.
2. Open Fiddler and go to Tools -> Options.
3. In the Options window, select the HTTPS tab.
4. Enable the "Capture HTTPS CONNECTs" and "Decrypt HTTPS traffic" options.
5. Click on the "Actions" button and select "Export Root Certificate to Desktop."
6. Double-click on the exported certificate file to open it.
7. In the Certificate window, click on the "Install Certificate" button.
8. Select "Local Machine" as the certificate store location and click "Next."
9. Choose "Place all certificates in the following store" and click "Browse."
10. Select "Trusted Root Certification Authorities" and click "OK."
11. Click "Next," then "Finish," and finally "OK" to complete the installation.
12. Restart Fiddler and try accessing the HTTPS site again.

If the above steps don't resolve the issue, you may need to check if any antivirus or firewall software is blocking Fiddler's certificate or interfering with its HTTPS interception.