⚠️ 2 verified solutions available for Error 1129 — Last updated 2026-03-05
Error 1129 📋

Fix ERROR_NOT_ENOUGH_SERVER_MEMORY — Windows Error Code 1129

Error 1129 (ERROR_NOT_ENOUGH_SERVER_MEMORY) is a Windows Configuration error that occurs when physical end of tape encountered.. This guide provides step-by-step solutions to resolve this issue.

🏷️ Code: 1129 📛 ERROR_NOT_ENOUGH_SERVER_MEMORY 📅 Updated: 2026-03-05 ⏱️ 2 Solutions
⚡ Quick Fix

Restore Registry from Backup: Press Win+R, type rstrui.exe, press Enter

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🐞 Auto-Fix Script for Error 1129
⚠️ How to use: Open PowerShell as Administrator, paste the code above, and press Enter.
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📑 Table of Contents
What is Error 1129? Common Causes Step-by-Step Solutions Prevention Tips Related Errors

💡 What is Error 1129?

Windows System Error Code 1129, known as ERROR_NOT_ENOUGH_SERVER_MEMORY, is a Configuration error that occurs during system configuration and registry. The error indicates that: Physical end of tape encountered. When this error is encountered, the Windows operating system was unable to complete the requested operation within the configuration management subsystem. The error code 1129 is returned by the GetLastError() function and provides developers with a specific identifier to diagnose the root cause of the failure. The symbolic name ERROR_NOT_ENOUGH_SERVER_MEMORY maps directly to this numeric code and is commonly referenced in Microsoft documentation, developer forums, and system logs. Understanding this error and its context within system configuration and registry is essential for effective troubleshooting.

⚠️ Common Causes

  • System resource conflict: Physical end of tape encountered.
  • Registry entries are corrupted
  • Config files are missing or malformed
  • A recent update changed system settings
📚 Comprehensive Guide

Understanding HRESULT Codes: A Deep Dive into Windows Error Architecture

A deep technical dive into decoding 32-bit HRESULT error codes in Windows, understanding facility codes, and identifying error sources.

Read the full guide →

✅ Step-by-Step Solutions

1 Restore Registry from Backup
  1. Press Win+R, type rstrui.exe, press Enter
  2. Select a restore point before Error 1129 (ERROR_NOT_ENOUGH_SERVER_MEMORY) started
  3. Follow the wizard to restore system configuration
  4. Restart your computer
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2 Reset Application Settings
  1. Open Settings → Apps → Apps & Features
  2. Find the app → Advanced options → Reset
  3. This restores default configuration without uninstalling

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💻 Diagnostic Command

Run this PowerShell command to find related events in your system log:

Get-EventLog -LogName System -Newest 20 | Where-Object {$_.Message -like "*1129*" -or $_.Message -like "*ERROR_NOT_ENOUGH_SERVER_MEMORY*"} | Format-List

💡 Open PowerShell as Administrator, paste the command above, and press Enter.

🛡️ Prevention Tips

  • Back up registry before editing
  • Use built-in tools, not manual edits
  • Document all system configuration changes
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Last updated: 2026-03-05
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Based on Official Microsoft Documentation
Solutions Tested on Windows 10 & 11
Error codes sourced from Microsoft Win32 SDK. Updated 2026-03-05.
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