follow below steps to remove icSecInvalidCert: The certificate is invalid. Issues.
1.Click Computer on your desktable and right click Disk C to select Properties.
2.Click Disk Cleanup, you'll see a window just as right, this process need some minutes.
3.Under Disk Cleanup there are Files to delete, tick the files you don't need to free pc space, finally click OK.
The windows system has a powerful feature - System File Check, it can be used to scan and repair most of system errors. In most case, your errors can be fixed by running SFC (short by System File Check), reading following tutorial to have a full scan of your system.
1.Press Win + R, type cmd, press enter.
2.Type sfc /scannow, press enter.
3.When the progress is done, close the window.
4.Restart your computer.