Windows 10: Missing certificate

XboxAppServices.exe is missing your digital Microsoft certificate. All programs you have are digitally signed except that one. Why?

:)

 

Expired security certificate for Metropcs.com

Hi David,

Getting the error message that says the site is using an invalid security certificate may be caused by missing certificates or could be due to web browser cache issues. To sort out this problem, try manually installing the missing certificates and deleting
the web browser's browsing history. Follow the steps below:

Manually installing the missing certificates.

• In Internet Explorer, click Continue to this website (not recommended), if the error message about having invalid security certificate pops up.
  
• Click the Certificate Error to open the information window.
  
• Click View Certificates, and then Install Certificate.
• On the warning message that appears, click Yes to install the certificates.

Clearing browsing history.

• Launch Internet Explorer.
• Click Tools (gear icon) on the top-right corner, then select
  Internet Options.
• Under General > Browsing history, click Delete.
• Tick the box for Temporary Internet files and website files.
• Click Delete.

Once done, try accessing the website again and see if you still get the same error.

Let us know the result.

Regards.

 

Why did the startup window get cleared?

I didn't missed any step, the list was gone and gone , even after using lot of programs the programs were not listed in that list.

 

Missing User Certificates Folder

Have you ever backed up the certificates under the personal? If there is, I suggest you can refer to this article to restore it.

If not, I hope the following methods may help you, specific information can be viewed in this article: How to Restore a Deleted Certificate