If your laptop takes forever to start, apps open slowly, and the fan keeps spinning even when you’re doing almost nothing, the usual reason is simple - too many background programs running.

Most Windows laptops slow down because several apps start automatically with Windows. A few quick adjustments usually fix it.

These are the same steps I use when someone hands me a slow Windows laptop and says, “It was fine last month, now everything is lagging.”

Disable Startup Programs (This Fixes Most Slow Laptops)

When Windows starts, many programs launch automatically. Game launchers, update services, chat apps, cloud sync tools… all trying to load at the same time.

Usually people never notice this happening.

Steps

  1. Press Ctrl + Shift + Esc to open Task Manager
  2. If the simple view appears, click More details
  3. Open the Startup tab
  4. Look at the Startup impact column
  5. Right-click apps you don’t need → click Disable

Common apps that are safe to disable:

  • Spotify
  • Discord
  • Epic Games Launcher
  • Skype
  • Zoom auto launcher
  • Adobe updater

One thing people miss: disabling a startup program does not uninstall it. It simply stops launching automatically.

In most cases, this reduces boot time noticeably.

Warning:
Do not disable things like Windows Security, touchpad drivers, or graphics drivers.

Close Hidden Programs Using RAM

Sometimes the laptop feels slow even after startup because one program is quietly eating RAM.

Usually it’s Chrome with too many tabs, a stuck update process, or background software that never closed properly.

Steps

  1. Press Ctrl + Shift + Esc
  2. Stay in the Processes tab
  3. Click the Memory column to sort by usage
  4. Find apps using large amounts of memory
  5. Right-click → End Task

If this doesn’t work, restart the laptop once.

Usually a restart clears processes that have been stuck running for hours or even days.

Turn Off Background Apps

Windows allows many apps to run in the background even when you never open them.

This matters especially on laptops with 8GB RAM or less.

Windows 11

  1. Open Settings
  2. Go to Apps
  3. Click Installed Apps
  4. Select an app → Advanced Options
  5. Under Background app permissions, choose Never

Windows 10

  1. Open Settings
  2. Go to Privacy
  3. Select Background apps
  4. Disable apps you don’t need

Usually I turn off background access for things like:

  • Skype
  • Xbox apps
  • Weather apps
  • Random Microsoft Store apps

If an app really needs background access, you can turn it back on later.

Clear Temporary Files

Windows stores temporary files for updates, installers, and applications. Over time they build up.

Cleaning them doesn’t transform performance dramatically, but it often removes small slowdowns.

Steps

  1. Press Windows Key + R
  2. Type:
temp
  1. Press Enter
  2. Delete everything inside the folder

Some files may refuse to delete. That’s normal - just skip them.

Now repeat the same steps with:

%temp%

And then:

prefetch

If Windows asks for administrator permission, click Continue.

One warning: don’t randomly delete folders inside C:\Windows unless you know exactly what they are.

Restart Windows Explorer (Quick Refresh)

If the taskbar freezes, file explorer feels sluggish, or the desktop is laggy, restarting Explorer often fixes it instantly.

Steps

  1. Open Task Manager
  2. Scroll down to Windows Explorer
  3. Right-click it
  4. Click Restart

Your screen may flicker for a second. That’s normal.

Usually the system feels smoother immediately afterward.

A Mistake Many People Make

A lot of users install so-called PC cleaner or booster software hoping it will magically speed everything up.

In most cases those tools:

  • run constantly in the background
  • consume RAM
  • show scary warnings to push upgrades

Usually the manual fixes above work better and don’t add extra software.

When These Fixes Won’t Help

If the laptop is still extremely slow after this, the issue is probably hardware.

Common signs:

  • Disk usage stuck at 100%
  • Only 4GB RAM installed
  • Old mechanical HDD instead of SSD

In most cases, upgrading to an SSD is the biggest performance improvement you can make. It can make a 6-year-old laptop feel almost new.

Final Thoughts

When a Windows laptop feels slow, the cause is usually too many startup programs or background processes.

Disabling unnecessary startup apps, closing memory hogs, and clearing temporary files often restores speed within minutes.

And if none of those help, it’s usually time to check the hardware - especially the storage drive.

FAQ

Why did my laptop suddenly become slow?

Usually a new program added itself to startup or a background process is using too much RAM.

Is it safe to disable startup apps?

Yes. It only stops them from opening automatically when Windows starts.

How often should temporary files be cleaned?

Once every few weeks is usually enough.

For a complete Windows performance optimization guide, read: /windows-performance/

FAQ