Root Certificate Browser Error (started to appear randomly)  

Hey guys, I'm having a bit of trouble with my Lenovo x220 laptop.

At first I had installed the RTM 10240 version and then updated it to Build 10586. Once I updated I noticed the computer started to behave erratic random freezes at boot up, forcing me to hold the power key down to turn off and reset, would do this a couple of times until it would boot.

Finally I couldn't figure out the problem so on DEC 9, I said "f-it" and formatted the machine with clean build of 10586 using the Microsoft official tool and media creation. Everything seemed to be working fine, drivers and files downloaded and installed automatically. Installed all my programs and customized it the way I like it. Everything seemed to be running fine, last time I used the machine was DEC 13th.

No new programs or software has been installed since that time. At the time I last used it I was just surfing the web and using firefox, and watching youtube. No games, no installs, no new programs, nothing. I double checked program manager, and last time any programs were installed was on DEC 9, but like I said it was working fine since. Today when I booted, Windows installed updates and now on every reset I am getting this particular error on boot,

An attempt to add the root certificate to all known browsers on your computer failed.

And yea, I have no clue what this means or how to solve it. I did already run an /sfc scannow as admin command prompt and everything came back A-OK ....

Can anyone point me in the right direction? This is the 2nd time W10 has gone flaky on me on this machine. I'm trying to give this OS a "chance" and work my way through it, but common this is the 2nd error already since using W10 on this laptop that it's going screwy. I am keeping all programs to a minimum on here in case I have any compatibility issues.

Thank You.,

really?

Same Problem Here. Please help me. How to fix this problem. I can't understand about '/sfc scannow as admin'

i think it is your anti virus program, check if you have in your anti virus settings "add security certificate to known browsers", disable it or uncheck it, exit your anti virus program settings.

Well you have 2 choices either restart your computer or go back to settings again and enable or check "add security certificate to known browsers" setting, i would go with the second choice before restarting, if didn't work try restart then enter the settings and enable "add security certificate to known browsers" again.