Check you shared which folder windows. (List)

To view a list of all shared folders

• Click the Windows button
• Right-click Computer and choose Manage (requires administrative privilege)
• Traverse to Computer Management > System Tools > Shared Folders > Shares

Command Line Way

List All Shares

net share

Stop Sharing a Folder

net share sharename /delete

Stop Sharing All Folders

Write a script, and double-click it!
The following script will stop sharing sharename1 and sharename2.
Replace these with your own share names. Save as stopsharing.bat.

@echo off
net share sharename1 /delete
net share sharename2 /delete
pause

Note how share names with spaces in them must be enclosed by quotes.