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AtlasOS includes debloat tweaks that remove bloatware, disable unnecessary scheduled tasks, and optimize storage settings. These tweaks are defined in YAML configuration files located in Configuration/tweaks/debloat/.

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Overview

Debloat tweaks in AtlasOS focus on:
  • Removing unnecessary Windows features
  • Disabling resource-consuming scheduled tasks
  • Optimizing storage management
  • Hiding unused system pages
  • Reducing system overhead

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Scheduled Task Management

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Disable Scheduled Tasks

---
title: Disable Scheduled Tasks
description: Disables scheduled tasks to prevent automatic tasks from running at startup, consuming resources and collecting user data
actions:
  # Updates compatibility database
  - !scheduledTask: {path: '\Microsoft\Windows\Application Experience\PcaPatchDbTask', operation: disable, ignoreErrors: true}
  
  # Data collection
  - !scheduledTask: {path: '\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticDataCollector', operation: disable, ignoreErrors: true}
  
  # CEIP - safety measure
  - !scheduledTask: {path: '\Microsoft\Windows\Customer Experience Improvement Program\Consolidator', operation: disable, ignoreErrors: true}
  - !scheduledTask: {path: '\Microsoft\Windows\Customer Experience Improvement Program\UsbCeip', operation: disable, ignoreErrors: true}
  
  # A/B testing usage reports
  - !scheduledTask: {path: '\Microsoft\Windows\Flighting\FeatureConfig\UsageDataReporting', operation: disable, ignoreErrors: true}
  - !registryValue:
    path: 'HKLM\System\CurrentControlSet\Control\Ubpm'
    value: 'CriticalMaintenance_UsageDataReporting'
    operation: delete
This tweak disables several scheduled tasks that:
  • Update compatibility databases
  • Collect diagnostic data
  • Report telemetry to CEIP
  • Send usage data for A/B testing
  • Perform unnecessary background operations
The ignoreErrors: true flag ensures the tweak continues even if a task doesn’t exist on certain Windows versions.

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Storage Management

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Configure Storage Sense

---
title: Configure Storage Sense
description: Configures Storage Sense to automatically cleanup temporary files every month
actions:
  # Enable Storage Sense
  - !registryValue: {path: 'HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\StorageSense\Parameters\StoragePolicy', value: '01', type: REG_DWORD, data: '1'}
  # Run Storage Sense
  - !registryValue: {path: 'HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\StorageSense\Parameters\StoragePolicy', value: '1024', type: REG_DWORD, data: '1'}
  # Run Storage Sense every month
  - !registryValue: {path: 'HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\StorageSense\Parameters\StoragePolicy', value: '2048', type: REG_DWORD, data: '30'}
  # Enable cleaning temporary files
  - !registryValue: {path: 'HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\StorageSense\Parameters\StoragePolicy', value: '04', type: REG_DWORD, data: '1'}
  # Disable the 'Downloads' from being cleared
  - !registryValue: {path: 'HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\StorageSense\Parameters\StoragePolicy', value: '32', type: REG_DWORD, data: '0'}
  # Disable OneDrive cleanup
  - !registryValue: {path: 'HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\StorageSense\Parameters\StoragePolicy', value: '02', type: REG_DWORD, data: '0'}
  # Disable Recycle Bin cleanup
  - !registryValue: {path: 'HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\StorageSense\Parameters\StoragePolicy', value: '08', type: REG_DWORD, data: '0'}
  # Enable cleaning temp files
  - !scheduledTask: {path: '\Microsoft\Windows\DiskCleanup\SilentCleanup', operation: enable}
Storage Sense configuration:
  • Enables automatic temporary file cleanup
  • Runs monthly to maintain storage
  • Preserves Downloads folder contents
  • Keeps Recycle Bin intact
  • Disables OneDrive cleanup (as OneDrive is removed)
  • Enables silent disk cleanup task

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Disable Reserved Storage

---
title: Disable Reserved Storage
description: Disables reserved storage for Windows Updates to have more storage space
actions:
  - !run: {exe: 'DISM.exe', args: '/Online /Set-ReservedStorageState /State:Disabled', weight: 30, ignoreErrors: true}
Disables Windows 10/11 reserved storage feature that sets aside 7GB+ of disk space for updates. This frees up storage space on systems with limited disk capacity.

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Content Delivery Configuration

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Configure Content Delivery

Disables Windows content delivery features including:
  • Suggested apps in Start Menu
  • Tips and recommendations
  • App suggestions in Settings
  • Pre-installed promotional apps
  • Automatic app installation
This reduces bloatware and unwanted app installations.

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Interface Cleanup

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Hide Unused Security Pages

Hides unused Windows Security pages from the security center interface, simplifying the UI by removing features that are disabled or not applicable in AtlasOS.

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Debloat Tweaks Summary

CategoryWhat’s Removed/DisabledBenefit
Scheduled TasksCompatibility updates, diagnostics, CEIP, usage reportingReduced CPU/disk usage
Storage SenseConfigured for safe cleanupAutomatic maintenance
Reserved Storage7GB+ update reserveMore usable storage
Content DeliverySuggested apps, tips, adsCleaner experience
Security PagesUnused security featuresSimplified UI

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Configuration Location

All debloat tweak YAML files are located in: 
src/playbook/Configuration/tweaks/debloat/
├── config-content-delivery.yml
├── config-storage-sense.yml
├── disable-reserved-storage.yml
├── disable-scheduled-tasks.yml
└── hide-unused-security-pages.yml

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Disabled Scheduled Tasks

The following scheduled tasks are disabled:

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Application Experience

  • PcaPatchDbTask - Program Compatibility Assistant database updates

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UCPD

  • UCPD velocity - Universal Control Panel Diagnostics

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Diagnostics

  • Microsoft-Windows-DiskDiagnosticDataCollector - Disk diagnostic data collection

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Customer Experience Improvement Program

  • Consolidator - CEIP data consolidation
  • UsbCeip - USB device telemetry

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Feature Flighting

  • UsageDataReporting - A/B testing and feature rollout data

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YAML Structure

Debloat tweaks use several action types: 
---
title: Tweak Name
description: What is being debloated and why
actions:
  # Disable scheduled task
  - !scheduledTask:
    path: '\Path\To\Task'
    operation: disable
    ignoreErrors: true
  
  # Configure registry setting
  - !registryValue:
    path: 'HKEY\Path\To\Key'
    value: 'ValueName'
    data: '0'
    type: REG_DWORD
  
  # Run system command
  - !run:
    exe: 'DISM.exe'
    args: '/Online /Set-ReservedStorageState /State:Disabled'
    weight: 30
    ignoreErrors: true

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Impact on System

Debloat tweaks provide:
  • Reduced startup time
  • Lower idle CPU usage
  • Less disk activity
  • More available storage space
  • Cleaner user interface
  • Fewer background processes
  • Improved system responsiveness

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Safety Considerations

  • All tweaks are reversible
  • Tasks use ignoreErrors: true for version compatibility
  • Critical system tasks are not disabled
  • Storage Sense preserves user data (Downloads, Recycle Bin)
  • Reserved storage can be re-enabled if needed for major updates

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