How to Fix Certificate Errors on Your Computer

By Shanika Chapman

Getting the "An Input Field contains an invalid X500 characters" certificate error when using the Web Server Certificate Wizard is a fairly common error and can be easily remedied. The root of the certificate error involves the use of X500 characters, such as a "," in the "Organization" field.

Step 1

Close any unnecessary applications and save any work in progress.

Step 2

Visit the link in Resources and download the Hotfix by clicking on "View and request Hotfix downloads."

Step 3

Read the Terms and Conditions, and when done, click "I accept."

Step 4

Follow the on-screen instructions to download the Hotfix.

Step 5

Verify that the downloaded Hotfix file, "Certwiz.ocx," is located in your System Directory, which is typically either "C:\Windows\System," "C:\Windows\System32," or "C:\WINNT\System." At this point, the Hotfix has been successfully applied.

Tips & Warnings

  • If there is no message indicating that the Hotfix is available when you visit the link Resources to download the Hotfix, then it is not a necessary Hotfix for your system.
  • Only use this Hotfix if you are experiencing the "An Input Field contains an invalid X500 characters" certificate error. This Hotfix is not recommended as a precautionary measure.