The account that you are logged in with needs to be a member of the administrators group on the remote machine in order to access the C$ share.
Open a Powershell prompt and run these commands using your target computer name.
Test-NetConnection -ComputerName *YourComputerName*
Test-NetConnection -ComputerName *YourComputerName* -CommonTCPport SMB
net.exe view *YourComputerName*
Do they all execute successfully?
Share out another folder and grant "Everyone" access on the share permissions. That share should then show up in the "net view" output.