Microsoft Windows Error Code 0xC0000070: How to Fix It

Medium 15-30 minutes Medium Severity Verified June 2026
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Error Code
0xC0000070
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
15-30 minutes
Error 0xC0000070 indicates that your Windows workstation is not authorized to access a network resource. This typically happens when trying to connect to a shared folder or printer, and the remote computer denies access due to permission or security policy issues.
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How to Fix Error Code 0xC0000070

  1. Check Workstation Name and Domain

  2. Restart the Workstation Service

    This may temporarily disconnect network shares; save your work first.

  3. Verify Network Credentials

  4. Check Local Security Policy

    Modifying security policies can affect system security; only change if necessary.

  5. Reset TCP/IP Stack

    This will reset your network configuration; ensure you have backup or know your settings.
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When to Call a Professional

If the error persists after trying all above steps, your network administrator or a professional IT technician may need to check domain policies, permissions on the remote resource, or firewall rules.

Frequently Asked Questions

What does error 0xC0000070 mean?
It means 'STATUS_INVALID_WORKSTATION' — your workstation is not authorized to access a network resource, often due to incorrect workstation name, credentials, or security policy restrictions.
How do I fix error 0xC0000070 when accessing a shared folder?
Restart the Workstation service, reset your TCP/IP stack, verify your credentials in Credential Manager, and ensure your computer name is correct in System Properties.
Can a firewall cause error 0xC0000070?
Yes, a third-party firewall or Windows Defender Firewall can block the necessary ports (e.g., 445 for SMB). Try temporarily disabling the firewall to test, then add an exception if needed.
Does error 0xC0000070 require admin rights to fix?
Some steps, like restarting services or modifying security policy, require administrator privileges. If you are on a work computer, contact your IT department.
Is error 0xC0000070 related to a virus?
While not typically caused by malware, persistent network errors can sometimes indicate an infection. Run a full antivirus scan and check for unusual network activity.

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