Windows 10: Need to find and delete the duplicate older machine certificates

Hi,I want to know if there is a PowerShell command that can find and delete duplicate old machine certificates from the local machine store.I want to know if there is a query to find devices with duplicate certificates in "Cert:\LocalMachine\My" location.Thanks,Muja

:)

 

See if cert is local machine or current user?

There seems to be two cert managers. One for Current User at certmgr.msc and another for Local Machine at certlm.msc. From this site here: https://docs.microsoft.com/en-us/win...ificate-stores it says that Local Machine cert entries are also listed in Current User.

What I want to know is, is there a way to tell if a certificate listed in certmgr.msc is Local Machine or Current User? Because deleting a certificate from certmgr.msc would also delete it from Local Machine if it exists as a Local Machine entry. This is especially a problem when you may have duplicate certificates or different Local Machine/Current User certificate entries.

There doesn't seem to be a way within certmgr or certlm to check if a certificate is local to Current User or not. This is a problem when you import a certificate to both Local Machine and Current User, as it shows up only once in certlm.msc but twice in certmgr.msc with no difference between the two. You would not know which one to delete if you wanted to remove Current User's version only.

Edit: Seems theres a few roundabout ways...
Method 1: Check the store locations here https://docs.microsoft.com/en-us/win...tore-locations and see if you can find stores via their thumbprint...
Method 2: in cmd type certutil (-user) -(view)store <name of store> as suggested here: Windows certificate stores | Blog. This is ok for seeing if there are specific certs in one store...

Not sure why it has to be so roundabout... if anyone else knows of another method please do tell

 

Unable to view Certification portal

Hi SantosiniChoudhury



Thanks for posting the thread on our forum.



According to your description, it seems that you get the error message and can’t view Certification portal.

About how to download the certificate, you can do the following steps:

1. On the “Your dashboard” page, please click on 'Download or purchase' under “Certificates”.
   
2. On the “Certificate” page, select the certificate(s) that you would like to download or purchase.
   
3. Please click on the “PDF” button. An "OPEN, SAVE, SAVE AS" bar will pop-up at the bottom of the page.
   

Besides, we kindly advise you to follow the steps listed below and attempt to try the following troubleshooting over the day:

1. Make sure to use an up-to-date browser. (e.g. Edge)
   
2. Clear cache and cookies. Make sure you check Preserve Favorites, website data and check both Temporary Internet Files and Cookies; then click Delete.
   
3. On the Delete Browsing History window, make sure to uncheck Preserve Favorites, website data and check both Temporary Internet Files and Cookies; then click Delete.
   
4. Allow all third-party cookies through the browser settings.
   

Hope the suggestions can help you.



Regards,

Stacey

 

Duplicate Contacts.. which ones to delete?

from the link above

Clean up duplicate contacts at Outlook – free personal email and calendar from Microsoft

You can combine duplicate contacts into a single one with all the contact info.

Use “Clean up contacts”

• 
  In People, click Manage, then click Clean up contacts.
  
• 
  Within each contact set, clear the check box for any contact you don’t want in the set.
  
• 
  Repeat step 2 for all contact sets, and then click Clean up.
  

Search and combine manually

• 
  In the People search field, type the name of the contact you’re looking for.
  
• 
  In the search result, select the contacts you want to combine, and then click
  Link.
  

Undo a combined contact
When a new combined contact is created, the original duplicate contacts are then deleted. If you accidentally combine two or more contacts that are actually different people, here’s how to restore them.

• 
  In People, click Manage, and then Restore deleted contacts.
  
• 
  Select the original contacts you want to restore, then click Restore.
  
• 
  Click the incorrectly-combined contact, click Delete, then click
  Delete again.