Microsoft Windows Error Code 0x80070045: How to Fix It

Medium 15-30 minutes Medium Severity Verified June 2026
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Error Code
0x80070045
Brand
Microsoft Windows
Product Type
hresult
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
15-30 minutes
Error code 0x80070045 on Windows indicates 'ERROR_TOO_MANY_SESS' – the system has reached the maximum number of concurrent sessions. This typically occurs when too many users or applications are connected to a shared resource, like a network drive or printer, or when remote desktop connections exceed the limit. This guide provides simple fixes to resolve the issue.
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Tools You'll Need

How to Fix Error Code 0x80070045

  1. Disconnect Idle Sessions

    Do not delete sessions you are currently using.

  2. Restart the Server Service

  3. Check Remote Desktop Connection Limits

  4. Reduce Network Share Connections

  5. Increase Session Limit via Registry (Advanced)

    Incorrect registry changes may harm your system. Proceed with caution.
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When to Call a Professional

If the error persists after these steps, you may have a corrupted system file or deeper network issue. Consider consulting an IT professional or using Windows System File Checker (sfc /scannow) first.

Frequently Asked Questions

What does error 0x80070045 mean?
It means Windows has reached the maximum number of allowed sessions, usually due to too many network or remote desktop connections.
Can I increase the session limit on Windows 10 Home?
Windows 10 Home has strict limits (e.g., 20 network connections). You cannot increase it beyond that; upgrading to Pro or Server edition may help.
Will restarting my PC fix error 0x80070045?
Yes, a restart can clear temporary sessions. If the error returns, you need to reduce the number of concurrent connections.
How do I see active sessions on Windows?
Open Command Prompt as administrator and type 'net session' to list all active network sessions.
Is error 0x80070045 a virus?
No, it's a legitimate Windows error related to session limits. However, advanced troubleshooting may be needed if it keeps appearing.

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