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Whenever I restart my computer, I see the following window...

Expiring certificates warning

If I check the box next to the certificates listed and click Done, I see...

Error cannot find file

This is on Windows 10 and includes software like Office (including Outlook), Visual Studio, SQL Server Management Studio, and Skype for Business.

In order to make the question more searchable, I'm including the text from the dialog below...

Expiring Certificates

The following certificates have expired or will expire soon. When a certificates expires, it is no longer considered an acceptable or usable credential. You can attempt to renew these certificates now. If you do not want to renew certificates at this time, Windows will remind you of their pending expiration each time you log on.

If you do not want to be reminded to renew specific user certificates, select the checkbox next to these certificates and click Done. For machine certificates, please read help and contact a system administrator if this warning reappears the next time you log onto the network.

Error message...

Error

The system cannot find the files specified.

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  • Which certificate store is the certificate installed in (machine or user)? Where within the store is it located in? There is a simple answer on why the certification cannot be found. What process is throwing up this dialog window by the way?
    – Ramhound
    Commented Aug 25, 2016 at 14:41
  • @Ramhound Looks like the window is from taskhostw.exe called by svchost.exe. When I hover over the task in Process Explorer, it says the Command Line is taskhostw.exe USER and the Tasks is Certificate Service Client Task Handler [\Microsoft\Windows\CertificateServicesClient\UserTask].
    – Aron Boyette
    Commented Jul 12, 2017 at 18:51
  • You need to pay Mister Bill. Apart from jokes facing the same error today :)
    – GOXR3PLUS
    Commented Oct 12, 2018 at 6:54

1 Answer 1

Reset to default
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Reinstalling the office suite got rid of it for me. According to the link below this error message can be ignored. The link includes a few workarounds as well. https://infrastructurehelp.wordpress.com/2014/04/04/lync-2010-users-receive-certificate-expiration-warning/

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  • Link-only answers are not helpful. This answers, in it's current form, appears to be spam for the blog in question
    – Ramhound
    Commented Jul 6, 2017 at 18:10

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