What is this Certificate Warning and How to Fix It?

  1.    05 Dec 2016 #1

    What is this Certificate Warning and How to Fix It?

    I've started getting this Event 64 certificate warning:

    Click image for larger version. 

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Views:	3 
Size:	31.9 KB 
ID:	112507
    I tracked down the thumbprint of the offending certificate which is this one:
    Click image for larger version. 

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Views:	3 
Size:	49.4 KB 
ID:	112509
    Can someone please advise what this certificate relates to and what I should do to fix the issue since I've never seen this problem before.
      My ComputersSystem Spec

  2. dencal's Avatar
    Posts : 2,841
    W10 Pro + W10 Preview
       05 Dec 2016 #2

    The following link might help....something to do with Windows Server 2008.
    Event ID 64 — AD CS Certification Authority Certificate and Chain Validation
      My ComputersSystem Spec

  3.    05 Dec 2016 #3

    Thanks. I tried the renewal option but I got this error:
    Click image for larger version. 

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Views:	36 
Size:	25.6 KB 
ID:	112531
    What is the XBL Client IPSec Issuing CA certificate for and do I need to do anything to update it? I would delete it if I knew what it's for but the certificate properties shows You have a private key that corresponds to this certificate. I don't want to delete it unless I'm sure what the certificate is for.

    I also discovered the certificate warning is directly correlated with and preceded by a fraction of a second with this warning:
    Click image for larger version. 

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Views:	2 
Size:	110.7 KB 
ID:	112536
    Knowing what this warning is for may shed some light on the issue.
    Last edited by Steve C; 05 Dec 2016 at 12:19.
      My ComputersSystem Spec

  4. dencal's Avatar
    Posts : 2,841
    W10 Pro + W10 Preview
       05 Dec 2016 #4
      My ComputersSystem Spec

  5.    06 Dec 2016 #5

    I exported / backed up the outdated certificate then deleted the original certificate. The warning is now gone and I can always reinstate the certificate if required. I've stopped the Event ID 219 error which happened at the same time by disabling the Portable Device Enumerator Service.
      My ComputersSystem Spec


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