Why does Windows prompt for credentials when accessing the C$ share, but not when accessing a regular folder...

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Why does Windows prompt for credentials when accessing the C$ share, but not when accessing a regular folder share?



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Scenario




  • I have two Windows 10 Pro computers A and B on the same domain.

  • I am logged on to Computer A using a domain account and I'd like to access share 'files' on computer B.

  • Before I start net use returns zero results and there's nothing in the Windows Credentials manager.

  • The sysadmin of Computer B has limited access to the 'files' share to
    just the local administrator (BAdministrator).


  • Folder security on 'files' is: full control for users SYSTEM and

    BAdministrator, and members of the local BAdministrators group. The in-built Everyone group isn't listed.


  • I type \bfiles into the explorer address bar and I immediately get an error dialog: "Windows cannot access Bfiles. You do not have permission to access Bfiles. Contact your network administrator to request access.". Why don't I get prompted for credentials here once the authentication fails?


  • When I access \bC$, I get a prompt to "Enter Network credentials" with red text "Access is denied" at the bottom. Providing local administrator credentials works.

  • The audit log on B shows that when accessing both shares, the attempt is made using my domain account, but in the case of the C$ share it is subsequently giving me the opportunity to enter alternative credentials. Why doesn't this happen for the regular 'files' share? Is there something to do with how the sysadmin has configured permissions of the 'files' folder or share?


Work-around




  • I am aware I can use net use \Bfiles * /user:Busername or map a
    drive using the Explorer GUI and supply alternative credentials.

  • I am aware I can cache credentials
    (using cmdkey)









share





























    0















    Scenario




    • I have two Windows 10 Pro computers A and B on the same domain.

    • I am logged on to Computer A using a domain account and I'd like to access share 'files' on computer B.

    • Before I start net use returns zero results and there's nothing in the Windows Credentials manager.

    • The sysadmin of Computer B has limited access to the 'files' share to
      just the local administrator (BAdministrator).


    • Folder security on 'files' is: full control for users SYSTEM and

      BAdministrator, and members of the local BAdministrators group. The in-built Everyone group isn't listed.


    • I type \bfiles into the explorer address bar and I immediately get an error dialog: "Windows cannot access Bfiles. You do not have permission to access Bfiles. Contact your network administrator to request access.". Why don't I get prompted for credentials here once the authentication fails?


    • When I access \bC$, I get a prompt to "Enter Network credentials" with red text "Access is denied" at the bottom. Providing local administrator credentials works.

    • The audit log on B shows that when accessing both shares, the attempt is made using my domain account, but in the case of the C$ share it is subsequently giving me the opportunity to enter alternative credentials. Why doesn't this happen for the regular 'files' share? Is there something to do with how the sysadmin has configured permissions of the 'files' folder or share?


    Work-around




    • I am aware I can use net use \Bfiles * /user:Busername or map a
      drive using the Explorer GUI and supply alternative credentials.

    • I am aware I can cache credentials
      (using cmdkey)









    share

























      0












      0








      0








      Scenario




      • I have two Windows 10 Pro computers A and B on the same domain.

      • I am logged on to Computer A using a domain account and I'd like to access share 'files' on computer B.

      • Before I start net use returns zero results and there's nothing in the Windows Credentials manager.

      • The sysadmin of Computer B has limited access to the 'files' share to
        just the local administrator (BAdministrator).


      • Folder security on 'files' is: full control for users SYSTEM and

        BAdministrator, and members of the local BAdministrators group. The in-built Everyone group isn't listed.


      • I type \bfiles into the explorer address bar and I immediately get an error dialog: "Windows cannot access Bfiles. You do not have permission to access Bfiles. Contact your network administrator to request access.". Why don't I get prompted for credentials here once the authentication fails?


      • When I access \bC$, I get a prompt to "Enter Network credentials" with red text "Access is denied" at the bottom. Providing local administrator credentials works.

      • The audit log on B shows that when accessing both shares, the attempt is made using my domain account, but in the case of the C$ share it is subsequently giving me the opportunity to enter alternative credentials. Why doesn't this happen for the regular 'files' share? Is there something to do with how the sysadmin has configured permissions of the 'files' folder or share?


      Work-around




      • I am aware I can use net use \Bfiles * /user:Busername or map a
        drive using the Explorer GUI and supply alternative credentials.

      • I am aware I can cache credentials
        (using cmdkey)









      share














      Scenario




      • I have two Windows 10 Pro computers A and B on the same domain.

      • I am logged on to Computer A using a domain account and I'd like to access share 'files' on computer B.

      • Before I start net use returns zero results and there's nothing in the Windows Credentials manager.

      • The sysadmin of Computer B has limited access to the 'files' share to
        just the local administrator (BAdministrator).


      • Folder security on 'files' is: full control for users SYSTEM and

        BAdministrator, and members of the local BAdministrators group. The in-built Everyone group isn't listed.


      • I type \bfiles into the explorer address bar and I immediately get an error dialog: "Windows cannot access Bfiles. You do not have permission to access Bfiles. Contact your network administrator to request access.". Why don't I get prompted for credentials here once the authentication fails?


      • When I access \bC$, I get a prompt to "Enter Network credentials" with red text "Access is denied" at the bottom. Providing local administrator credentials works.

      • The audit log on B shows that when accessing both shares, the attempt is made using my domain account, but in the case of the C$ share it is subsequently giving me the opportunity to enter alternative credentials. Why doesn't this happen for the regular 'files' share? Is there something to do with how the sysadmin has configured permissions of the 'files' folder or share?


      Work-around




      • I am aware I can use net use \Bfiles * /user:Busername or map a
        drive using the Explorer GUI and supply alternative credentials.

      • I am aware I can cache credentials
        (using cmdkey)







      windows network-share





      share












      share










      share



      share










      asked 2 mins ago









      camioscamios

      61




      61






















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