Running win 10 system encountered the failure that the trust certificate expired, which made it impossible to access the website that needed to be accessed normally. This fault problem is very common, and it is not complicated to repair. We only need to add a trust certificate to solve it. So how does win 10 add a trust certificate? The method is simple. The detailed steps of adding a trust certificate in win 10 are explained in detail here.

The specific method is as follows:

1. Press "win+R" on the keyboard at the same time to start running, enter the command "mmc" and press enter to confirm;

2. In the interface that appears, select File Options and click Add/Delete Snap-in in the pop-up list;

3. Find the certificate in the list of available snap-ins in the pop-up interface and select Add;

4. In the interface that appears, check my user account, then click OK, add the certificate of completion, and then click OK. ;

5. In the certificate list-current user, find the trusted root certificate authority, select the certificate, find "CertumCA" in the certificate list that appears, and right-click to delete it; Reopen the website that needs the certificate and install the certificate according to the prompt. Click View Certificate Directly, and then click Install Certificate = Install to a trusted root certification authority.

The method of adding trust certificate in win 10 system is described in detail. After simple operation, the webpage will return to normal.