⚡ Ultimate Guide to Optimizing Windows 11

Turn any low-end PC into a fast, lightweight machine by debloating Windows, disabling unnecessary services, and applying tweaks.

⚠️ Warning: Backup all important data before proceeding.

📑 Table of Contents

Section	Description
1️⃣ Required Files & Tools	Tools needed before starting.
2️⃣ Prepare Bootable USB	Create Windows 11 USB with unattended XML.
3️⃣ BIOS & Installation	Install Windows 11 cleanly.
4️⃣ Atlas OS Optimization	Strip useless services & processes.
5️⃣ Chris Titus Tweaks	Standard & advanced Windows optimizations.
6️⃣ Disable Useless Services	Stop unnecessary background services.
7️⃣ RAM Registry Optimization	Reduce process count via registry tweaks.
8️⃣ Optional: Disable Windows Updates Completely	Prevent Windows from reinstalling drivers/updates (advanced users only).
9️⃣ Final Cleanup	Disable startup apps and finalize system.

1️⃣ Required Files & Tools

• Rufus → Download Rufus
• Windows 11 24H2 ISO → Download ISO
• Unattended XML → autounattend.xml
• Atlas OS (AME Wizard + Playbook .apbx) Download Atlas OS

💡 Note: Download all the folders above in the repository

2️⃣ Prepare Bootable USB

1. Install Rufus.
2. Load your Windows 11 ISO in Rufus and extract to USB.
3. Copy autounattend.xml directly to the root of the USB.

This ensures Windows installation automatically removes bloatware via PowerShell scripts.

3️⃣ BIOS & Windows Installation

1. Restart PC → Enter BIOS (F2 or DEL).
2. Set USB as the first boot device.
3. Install Windows 11:
   • Select language, region, keyboard layout.
   • Create a local account.
   • Set security questions.

✅ After installation:

• Wait 2–3 minutes for scripts to run.
• Click popup to restart.

4️⃣ Atlas OS Optimization 🛠️

1. Open Atlas OS folder:

   • Run AME Wizard Beta.exe.
   • Drag AtlasPlaybook_v0.4.1.apbx into the top-left.

2. Configure:

   • Microsoft Defender: Optional to disable (frees up resources).
   • Windows Updates: Disable recommended.
   • Windows Mitigations: Disable on older CPUs. Kepp recommended for newer CPUs.
   • Power settings: Leave default.
   • Edge / Browser: Highly recommened to remove Edge. Brave is recommended for privacy and performance, but you can choose any browser you prefer.

3. Click Next → Wait for installation to finish.

Post-Installation:

• Customize wallpaper, taskbar, lock screen.
• Delete Atlas logo in Customize Windows > User Account Pictures folder if desired.
• Edit system info via Edit System Information.ps1.

💡 Note:
If you’re on a laptop and your main screen appears black or low resolution after installing Atlas OS, it’s completely normal. This happens because Windows hasn’t installed your graphics drivers yet.

Simply connect to Wi-Fi (if needed) and manually install your GPU drivers:

• 🟩 NVIDIA laptops: NVIDIA Drivers
• 🔵 AMD laptops: AMD Drivers
• ⚪ Intel laptops: Intel Drivers

After installing and restarting, your display should return to normal with proper resolution and performance.

5️⃣ Chris Titus Tweaks ⚡

1. Go to the Optimize Windows folder located on your desktop.

2. Right-click on the Chris Titus Tool PowerShell script and select Run with PowerShell.

3. Once the tool launches, follow these steps carefully:

   • Install Required Apps:
     Choose any apps you may need for daily use (e.g., 7zip, Notepad++, etc.).
     Only install what’s essential — this step ensures a lightweight setup.

   • Standard Tweaks:
     Click on the Standard button.
     This will automatically disable several unnecessary background services, telemetry, and other performance-killing features.

   • Advanced Tweaks:
     After applying the Standard tweaks, open the Advanced section.
     Enable the options onl from “Disable Teredo” down to “Set Display for Performance”.
     Then, enable the last four tweaks and click on Run Tweaks.
     Wait patiently until all scripts complete — this may take a few minutes.

💡 These tweaks dramatically reduce background tasks, improve boot times, and enhance overall system responsiveness.

6️⃣ Disable Useless Services

• Run Disable Useless Services.ps1.
• ⚠️ Note: Spooler service is for printing — re-enable in Services app if needed.

7️⃣ RAM Registry Optimization 🖥️

1. Run Edit RAM Value - Registry.ps1.
2. Modify SvcHostSplitThresholdInKB based on RAM:

RAM	Value
4GB	400000
6GB	600000
8GB	800000
12GB	C00000
16GB	1000000
24GB	1800000
32GB	2000000
64GB	4000000

Reduces process count and optimizes memory usage.

8️⃣ Optional: Disable Windows Updates Completely

⚠️ Advanced and Risky — Proceed with Caution

Windows has multiple fallback update systems that often override user settings and re-enable updates over time.
Even after using Atlas OS, Windows may revert your optimization changes by reinstalling bloatware, telemetry, background drivers, and third-party software (like Tobii Eye Tracker, Intel Services, or Thunderbolt utilities).
These services run silently in the background and can severely impact performance.

🔧 Why Disable Updates

Disabling Windows Updates ensures that:

• Atlas OS and your performance tweaks remain intact.
• Windows won’t automatically install unwanted drivers or background services.
• You maintain full control over what’s running on your PC.

🪜 Step-by-Step Instructions

1. Disable Updates from Chris Titus Tool:

   • Run the Chris Titus tool with powershell from Optimize Windows Folder
   • Go to the Updates section and click on Disable ALL Updates
   • Open the Tweaks → Advanced section at the bottom of CTT.
   • Launch O&O ShutUp.
   • Go to the Local Machine section.
   • Disable everything in the Windows Update section, making sure all buttons turn green (indicating “disabled”).

2. Open the folder named Stop Windows Update.

3. Inside, you’ll see several shortcuts — each points to a protected Windows folder that controls update services.

4. Start with the Servicing folder:

   • Double-click to open it, then go up one directory by clicking on the Windows breadcrumb path at the top.
   • Right-click the Servicing folder → Take Ownership.
   • Right-click again → Properties → Security → Advanced.
   • In the permission entries box, select any entry that says SYSTEM, then click Disable Inheritance.
   • Choose Convert inherited permissions into explicit permissions, then remove all SYSTEM entries one by one.

5. Repeat the exact same steps for every shortcut inside the Stop Windows Update folder, except the one leading to System32.

6. Open the System32 shortcut folder:

   • Use the search bar (top right) to find these files:
     • wuauclt.exe
     • usoclient.exe
     • dosvc.exe
   • For each file:
     • Right-click → Take Ownership.
     • Right-click again → Properties → Security → Advanced.
     • Disable inheritance, convert permissions, and remove all SYSTEM entries.

7. Once finished, run the file:

   • Disable Updates and Driver Installation.bat
   • Right-click → Run as Administrator.

8. When the script completes, restart your PC.

💡 Note: If you see a ctfmon.exe error popup, run the Suppress Windows Errors.reg in Stop Windows Update folder to make it stop.

✅ Results

• Windows Update will now be completely disabled (including fallback services).
• Your system will remain stable and lightweight, with no background driver or telemetry reinstalls.
• Task Manager should now show around 50–70 processes total (depending on your setup).

💡 Tip: You can still manually update apps or drivers later if needed — just be careful not to re-enable Windows Update accidentally.

9️⃣ Final Cleanup 🧹

• Disable all startup apps: Settings > Apps > Startup.
• Verify unnecessary processes are gone.
• Enjoy your fast, lightweight, and optimized Windows 11 system.