Hi Gerard,
- Are you trying to share C: Drive?
- Have you made any changes to your computer?
Please use following instructions:
From the Properties window, you can set the Advanced Shared Permissions
a. From the Properties window, Click the Advanced Sharing button.
b. The Advanced Sharing window appears. First, select the check box beside the Share this folder option. Next, you need to type in a share name. By default, Windows 7 uses the name of the folder as the share name, but you can change the
name by typing a new name in the Share name field.
c. Now you’re ready to set the permissions. Click the Permissions button from the Advanced Sharing window
d. Select the Everyone group in the Group or user names list, and then click Remove. Click Add to display the Select users or groups window. Within the Enter the object names to select text box, type the name of the user or users you want
to give permission to access the shared folder (separate multiple usernames with semicolons). Click OK when you’re done to return to the Permissions window.
e. Next select the appropriate user in the Group or user names list. You can now use the permissions list to allow or deny one of the following permissions: Read, Change, or Full Control. Click OK if you’re done. If you want to assign permissions
to additional users or group, repeat these steps to assign them the appropriate permissions.
f. Click OK to return to the Advanced Sharing window and click OK again to return to the Sharing tab. Finally, when you click Close, the folder or file is accessible to others on the network.
g. Click OK to return to the Sharing tab, and then click Close to share the resource with the network.
Additional Information:
Share files with someone
http://windows.microsoft.com/en-US/windows7/Share-files-with-someone
Please let me know if issue still persists. We will be glad to assist you further.
Thanks