But before going through the solutions, let us discuss the causes of this error.
What causes the ‘There was a Problem Acquiring a Personal Certificate’ Error?
The said error mentioned can be caused due to various factors which are mentioned below — There are some solutions listed below that you can try to get rid of this error in Windows. Since every solution is specific to the cause of the problem, so all of them might not work for you but hopefully one of them will work.
Solution 1: Delete Sign-in information of Lync 2013
There are two ways you can delete your sign-in information of Lync 2013.
Method 1: Automatically Delete Sign-in information through Skype for Business
If you are using Lync 2013, then you need to do delete the sign in the information of your Skype account from Skype for Business to resolve the issue. Once you delete your sign-in information, the save usernames/emails will automatically be deleted from Lync as well and your issue will be resolved. To delete Sign-in information from Skype for Business, just open it and when you are greeted with the login screen, click on the option “Delete my sign-in info”. After doing that, all the stored certificates/ user’s email/passwords will be deleted from Skype as well as Lync. After that, try logging in again. If it was a problem with stored user data in Lync, then by deleting it would hopefully fix the problem for you.
Method 2: Manually Delete sign-in information
Another way is to manually delete the sign-in information from the AppData in Windows. If doing the above does not work for you then you need to manually delete the login data and certificates stored in AppData by following the below steps:
Solution 2: Turn on TLS 1.2
The issue can also appear if your operating system is using TLS 1.1 and TLS 1.2 isn’t enabled. In such a case, you will have to enable TLS 1.2 to resolve the issue. Here’s how to do it:
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