You press the power button, walk away, make coffee, come back — and Windows is still loading. Figuring out how to fix slow startup in Windows isn’t hard, and in most cases the fix takes under 15 minutes. The slowdown almost always comes from too many programs launching at boot, plus a few settings that make Windows take the long way.

Step 1: Disable Unnecessary Startup Apps

This is the single biggest win. Every app that starts with Windows adds seconds to your boot time — Spotify, Discord, Adobe updaters, printer utilities you forgot about.

  1. Press Ctrl + Shift + Esc to open Task Manager
  2. Click the Startup apps tab (on Windows 10, it’s a tab at the top; on Windows 11, click the star/rocket icon in the left sidebar).
  3. Look at the “Startup impact” column. Disable anything marked High or Medium that you don’t need immediately — right-click and choose Disable.

Don’t worry: disabling doesn’t uninstall anything. It just stops the app from launching at boot. You can still open it whenever you want. Keep your antivirus and anything you genuinely use every morning; disable the rest.

Windows Task Manager startup apps tab showing disabled programs
Disable high-impact startup apps you don’t need right away.

Step 2: Turn Off Fast Startup (Yes, Really)

This sounds backwards, but hear me out. Fast Startup (a Windows 10/11 feature) saves the system state to disk instead of fully shutting down, which is supposed to make boot faster. On some machines — especially older ones or systems with certain drivers — it actually causes slow, hung, or glitchy startups.

  1. Open Control Panel → Power Options → Choose what the power buttons do.
  2. Click Change settings that are currently unavailable.
  3. Uncheck Turn on fast startup, then save.

Test a restart. If boot got faster, leave it off. If not, you can turn it back on — no harm done.

Step 3: Check Your Storage Drive

If you’re still booting from a mechanical hard drive (HDD), that’s your bottleneck. Windows 10 and 11 are designed around SSDs, and the difference is dramatic — a machine that takes 3–4 minutes on an HDD often boots in 20–30 seconds on an SSD.

You don’t need a huge one: a 500 GB SSD is cheap and plenty for Windows plus your main apps. Cloning your drive or doing a fresh install both work; a fresh install is cleaner if your system has years of accumulated junk.

Step 4: Run a Quick Malware and Disk Check

Malware quietly eats boot time. Run a full scan with Windows Security (built in: Settings → Privacy & security → Windows Security → Virus & threat protection → Scan options → Full scan). If you run a third-party antivirus, use that too.

Also check disk health: open Command Prompt as administrator and run chkdsk /f, then restart when prompted. Bad sectors force Windows to retry reads, which slows everything down.

Step 5: Trim Windows’ Own Bloat

Windows ships with apps and services most people never use. A few quick trims:

  • Notifications and tips: Settings → System → Notifications → turn off “Get tips and suggestions when using Windows.”
  • Background apps: Settings → Apps → Installed apps → for apps you never use, click the three dots → Advanced options → set Background apps permissions to Never.
  • Visual effects: Search for “Adjust the appearance and performance of Windows” → choose “Adjust for best performance,” then re-enable “Smooth edges of screen fonts” so text doesn’t look awful. This helps noticeably on older hardware.

When Nothing Works: Consider a Reset

If you’ve disabled everything and it’s still crawling, the nuclear option is Settings → System → Recovery → Reset this PC. Choose “Keep my files” to reinstall Windows without wiping your documents. It’s the closest thing to a fresh machine without buying one, and it fixes slow startup caused by years of driver and registry mess.

FAQs

Why is my Windows startup suddenly slow? The most common causes are a new program adding itself to startup, a Windows update changing a driver, a nearly full drive (keep at least 15–20% free), or malware. Work through the steps above in order.

Does adding more RAM fix slow startup? Sometimes. If you have 4 GB, upgrading to 8 or 16 GB helps a lot. If you already have 16 GB, RAM isn’t your problem — look at startup apps and your drive type first.

How long should Windows take to boot? On an SSD, a healthy Windows 10 or 11 machine boots in 15–30 seconds. On a mechanical hard drive, 1–2 minutes is normal and 3+ means something’s wrong.

Is it safe to disable all startup apps? Not quite all — leave your antivirus/security software enabled. Everything else is safe to disable; nothing you disable here is required for Windows to run.

Internal links: