Windows Slow Startup: The Complete Fix

Published 2026 · 4 min read

Slow boot usually comes down to one of three things: too many startup apps, a mechanical hard drive, or post-update housekeeping. Here's how to hit all three.

1. Trim your startup apps

Open Task Manager (Ctrl+Shift+Esc) → Startup tab. Disable everything you don't need the moment you log in — updaters, launchers, and chat apps are the usual culprits. This is the fastest free win.

2. The hard drive is the bottleneck

Check in Task Manager → Performance → Disk whether you have an SSD or HDD. If it's an HDD, no software tweak will make it fast. The single best upgrade on any old PC is swapping the HDD for an SSD and reinstalling Windows on it — boot times go from minutes to seconds.

3. Post-update slowdowns

Big Windows updates do background work for a while. Let it settle, then run Disk Cleanup → Clean up system files to remove update leftovers and temp files.

4. Fast Startup

Turn on Fast Startup (Control Panel → Power Options → Choose what the power buttons do) — it makes shutdowns hibernate the kernel and boots much faster. It's on by default on most installs.

Interactive version

Not sure which category your PC falls in? Use the Windows slow startup fixer.