You may try the following methods and check if it helps:
Method 1:
a. Click Start and select Run, type cmd and click OK.
b. Type net stop cryptsvc and press the Enter key.
c. Type ren %systemroot%\System32\Catroot2 oldcatroot2 and press the Enter key.
d. Restart the computer.
e. Open again command prompt and Type net start cryptsvc and press the Enter key.