Microsoft shipped Windows 11 with ambitions of unified AI assistance, deeper cloud integration, and personalized experiences. That integration comes at a cost: a constant stream of recommendations, telemetry pings, and services you never asked for. A freshly installed Windows 11 23H2 machine sends data to dozens of Microsoft endpoints before most users open their first app. You can claw back control. By methodically shutting off Copilot, cleaning up startup programs, dialing back diagnostic data, and stripping out advertising identifiers, you transform the OS from a billboard into a workstation. Here’s exactly how.

Kill Copilot (or Contain It)

Copilot is the most visible expression of Microsoft’s new philosophy. Beginning with Windows 11 23H2, the Copilot icon sits pinned to the taskbar by default. In regions where it’s available, it opens a side panel powered by Bing Chat. In the European Economic Area, Microsoft offers a simpler toggle to remove Copilot entirely; elsewhere, you need Group Policy or a registry edit.

For Windows 11 Pro and Enterprise users: open the Local Group Policy Editor (gpedit.msc), navigate to User Configuration > Administrative Templates > Windows Components > Windows Copilot. Enable the policy “Turn off Windows Copilot.” On next reboot, the icon vanishes and the Win+C shortcut stops working.

For Home edition users, the Group Policy Editor isn’t officially available. You can achieve the same effect through the registry. Launch regedit, go to HKEY_CURRENT_USER\\Software\\Policies\\Microsoft\\Windows\\WindowsCopilot, create a DWORD named TurnOffWindowsCopilot and set its value to 1. If the key doesn’t exist, create it. A restart applies the change. If you ever want Copilot back, delete the DWORD or set it to 0.

Even with the icon removed, Copilot’s background processes may still run. Open Task Manager; look for “Microsoft Copilot” or any related edge processes. Right-click and end them. For a permanent block, use Windows Defender Firewall to create an outbound rule blocking explorer.exe from connecting to copilot.microsoft.com—but this is a nuclear option that may break web-based features in File Explorer. A safer middle ground: uninstall the Copilot app via Settings > Apps > Installed apps if it appears there.

Banish Advertising from Every Corner

Windows 11 sprinkles promotional content across the Start menu, lock screen, File Explorer, and even the Settings app. These “suggestions” are powered by a single advertising ID tied to your Microsoft account.

Start menu and lock screen ads hide behind Settings > Personalization. Under “Start,” turn off “Show suggestions occasionally in Start.” Under “Lock screen,” disable “Get fun facts, tips, tricks, and more on your lock screen.”

File Explorer ads for OneDrive or Microsoft 365 appear in the navigation pane. Open File Explorer, right-click an empty area of the ribbon, select “Options,” go to the View tab, and uncheck “Show sync provider notifications.” You can also directly remove the OneDrive shill: In the same Folder Options dialog, under the View tab, find and uncheck “Show notification provider.”

Advertising ID lives in Settings > Privacy & security > General. Turn off “Let apps show me personalized ads by using my advertising ID.” Also toggle off “Let websites show me locally relevant content by accessing my language list” and “Let Windows improve Start and search results by tracking app launches.”

Suggested content in Settings: Microsoft occasionally inserts “tips” and “suggestions” into the Settings home page. There’s no dedicated toggle; each card must be dismissed manually. Upgrading to Windows 11 Pro and using Group Policy: Computer Configuration > Administrative Templates > Control Panel > Settings Page Visibility can be set to “Showonly:” followed by a list of pages you want, but that demands careful maintenance.

Gut Telemetry and Diagnostic Data

By default, Windows 11 sends “ Required diagnostic data” — about 1.8 MB per day, per device — to Microsoft. That’s the minimum on Home and Pro editions, but the wording masks several optional surveys and reports.

Go to Settings > Privacy & security > Diagnostics & feedback. Set “Diagnostic data” to “Required diagnostic data” if it isn’t already. Turn off “Improve inking and typing” to stop sending keystroke samples. Under “Tailored experiences,” switch off “Let Microsoft use your diagnostic data to offer tips, ads, and recommendations.”

In the same screen, expand “Feedback frequency” and set it to “Never” unless you actively participate in the Windows Insider program.

For an extra layer, open Task Scheduler (taskschd.msc), browse to Task Scheduler Library > Microsoft > Windows > Customer Experience Improvement Program. Disable all tasks in that folder. The consolidated telemetry service, “Connected User Experiences and Telemetry,” can be stopped and set to “Disabled” via Services.msc, but doing so breaks Windows Update delivery optimization and some Store app downloads. Only proceed if you’re comfortable manually checking for updates.

Clean Up Startup Apps

Microsoft allows third-party software to register itself to launch at login, and many do so without asking. A handful of Microsoft’s own services also start automatically: OneDrive, Teams, and Edge preloading.

In Settings > Apps > Startup, you’ll see a list of programs that request automatic launch. Sort by “Startup impact” to identify the heaviest offenders. Flip the toggle to “Off” for anything you don’t need immediately after sign‑in.

Teams is particularly stubborn. If you have the personal version of Microsoft Teams (Chat icon on the taskbar), open Teams, go to Settings > General, and uncheck “Auto-start Teams.” For the enterprise version, the same setting exists under the “General” tab. Then in Windows Settings > Apps > Startup, also disable “Microsoft Teams.”

OneDrive can be paused: right-click the OneDrive cloud icon in the system tray, select the gear icon, go to “Settings,” and on the “Account” tab click “Unlink this PC.” Then on the “Settings” tab, uncheck “Start OneDrive automatically when I sign in to Windows.”

Edge preloading is a hidden burden. Even if you never use Edge, it starts background tasks at boot. In Edge, type edge://settings/system in the address bar. Turn off “Startup boost” and “Continue running background extensions and apps when Microsoft Edge is closed.”

For a complete audit, the Task Manager’s Startup tab and the older System Configuration tool (msconfig) both show entries that the Settings app misses. In msconfig, go to the Services tab, check “Hide all Microsoft services,” and disable any remaining non-essential third-party services. Be careful: turning off a driver or security software here can break hardware or leave you exposed.

Debloat and Disable Unnecessary Features

Windows 11 comes with a suite of optional features and default apps you may never touch. Removing them not only reduces clutter but also shrinks the attack surface.

Uninstall built-in apps: Settings > Apps > Installed apps. Sort by “Size” and uninstall anything you don’t use: Xbox, Skype, OneNote, Microsoft 365 trial, Clipchamp, and the various “Feedback Hub” applications. Some apps cannot be removed through Settings; for those, open an elevated PowerShell and use the Get-AppxPackage cmdlet. For example, to remove the “Microsoft People” app: Get-AppxPackage *people* | Remove-AppxPackage.

Disable Windows features: Type “Turn Windows features on or off” in the Start menu. Uncheck components like “Internet Explorer Mode” (unless you need legacy compatibility), “Media Features” (if you use third-party media players), “Print and Document Services” (if you don’t print), and “Windows Sandbox” (if you never sandbox). Rebooting applies these changes.

Cortana is largely dead, but its remnants linger. The “Cortana” app can be uninstalled via PowerShell: Get-AppxPackage *cortana* | Remove-AppxPackage. If you see a “Cortana” process in Task Manager, you can kill it and disable its scheduled tasks under Task Scheduler Library > Microsoft > Windows > Cortana.

Tighten Privacy Settings Beyond Defaults

Windows 11’s Privacy dashboard (Settings > Privacy & security) contains dozens of permission toggles. A few critical ones that often go overlooked:

  • Speech: Under “Speech,” turn off “Online speech recognition.” This stops audio snippets from being uploaded to Microsoft’s servers.
  • Inking & typing personalization: In “Inking & typing personalization,” turn off the custom dictionary that sends your typed words to the cloud.
  • Activity history: Under “Activity history,” uncheck “Store my activity history on this device” and “Send my activity history to Microsoft.” If you use a Microsoft account, also clear the existing history.
  • App permissions: Go through each category (Location, Camera, Microphone, etc.) and set “Let apps access your …” to “Off” for any sensor you don’t use. For apps that do need access, individually toggle the list so that only trusted software is allowed.
  • Background apps: Settings > Apps > Installed apps. Click the three-dot menu beside an app, select “Advanced options,” and under “Background apps permissions” set it to “Never.” This prevents the app from running in the background and consuming battery or data.

Advanced Network Tweaks

If you’re comfortable with network-level filtering, you can block Windows telemetry and ad servers at the router or via a custom hosts file. A regularly updated list of endpoints is maintained by the privacy community at github.com/your-dns-filter-list. Using tools like Pi-hole or AdGuard Home, you can block domains such as vortex.data.microsoft.com, settings-win.data.microsoft.com, and watson.telemetry.microsoft.com.

Before doing this, bear in mind that blocking telemetry servers can delay the delivery of security intelligence for Microsoft Defender. You should manually update Defender definitions via Security intelligence updates for Windows Defender Antivirus under Settings > Windows Update > Advanced options.

What You Gain

After applying these changes, a typical Windows 11 installation runs with about 30% fewer background processes and a noticeable drop in network chatter during idle periods. The Start menu becomes a clean, predictable launcher. File Explorer no longer badgers you to try Microsoft 365. Your RAM and CPU are spared the constant overhead of suggestion engines and pre-launched apps.

Microsoft will inevitably reenable some settings during major feature updates. Treat these configurations as an annual ritual—review your privacy toggles after every “Windows 11 24H2” or similar rollout. For persistent enforcement, consider scripting these changes with PowerShell or using a third-party utility like O&O ShutUp10++, which offers a simple interface for disabling telemetry and unwanted features.

The goal isn’t paranoia. It’s practicality. A less intrusive OS lets you focus on your work, extends battery life on laptops, and reduces the digital footprint you leave on Microsoft’s servers. Twenty minutes of configuration buys you years of relief from a platform that would otherwise treat your desktop as a storefront.