I faced the same issue on my system
I changed Dns Server to global Dns server (4.2.2.2) and issue resolved
Steps
# Click Start, click Control Panel, click Network and Internet Connections, and then click Network Connections.
# Right-click the network connection that you want to configure, and then click Properties.
# On the General tab (for a local area connection), or the Networking tab (for all other connections), click Internet Protocol (TCP/IP), and then click Properties.
#Put a dot in front of USE THE FOLLOWING DNS SERVER
and in the blank spaces type
4.2.2.2
4.2.2.3
And click OK and APPLY
Then check for update
i Hope your issue will be resolved
Take care
#