Cut boot time back to pre-update levels by measuring, then trimming the services and startup apps a feature update re-enabled on Windows 11.
A feature update commonly re-enables **startup apps** and resets **Fast Startup** behaviour. Measure first, then disable one group at a time to see which change actually recovers the seconds.
Open **Event Viewer → Applications and Services Logs → Microsoft → Windows → Diagnostics-Performance → Operational**. Filter for Event ID 100. The **Boot Duration** value (in ms) is your baseline. Note the last three boots.
Open **Task Manager → Startup apps**. Sort by **Startup impact**. Disable anything marked High that you do not need at login (OEM updaters, chat apps you launch manually, cloud drives you can start later). Reboot and re-check the Event 100 value.
Feature updates often re-enable Microsoft Edge preload, OneDrive setup, and telemetry tasks that run during logon. Open **Task Scheduler** and disable the Edge update preload task if you do not use Edge, and the Customer Experience Improvement tasks if you had them off before.
Open **Control Panel → Power Options → Choose what the power buttons do → Change settings that are currently unavailable**. Confirm **Turn on fast startup** matches what you had before the update. Toggle it, reboot, re-measure.
A feature update can leave stale prefetch files that slow the first boots. Clear them once and let Windows rebuild them over the next two or three boots.
del /q /f C:\Windows\Prefetch\*.pfOpen the vendor site for your motherboard or laptop and install the current chipset and storage drivers. A new Windows build often ships with a generic NVMe driver that is slower than the vendor one at init.
After each change, reboot twice and read the new Event 100 value. Keep the changes that moved the number down, revert the ones that did nothing. Keeping a one-line note per change makes this easy.
The Diagnostics-Performance log is disabled. Right-click the Operational log and choose Enable Log, then reboot once to generate a reading.
Re-enable it from Task Manager → Startup apps. The state is just a toggle.
Turn it back on in Control Panel → Power Options. On HDD and SATA SSD systems Fast Startup usually helps.
Windows runs post-install tasks, rebuilds the driver store and warms caches on the first few boots. Measure on the third boot, not the first.
No. It barely affects boot and breaks Start Menu search. Trim startup apps instead.
On a modern NVMe system, 15-25 seconds from power to desktop is normal. Anything over 60 seconds suggests a startup app or driver issue.
Re-enable any startup app from Task Manager → Startup apps. Re-enable any scheduled task you disabled by right-clicking it in Task Scheduler and choosing Enable. Toggle Fast Startup back in Control Panel → Power Options. The Prefetch folder rebuilds itself automatically.
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