How to Speed Up a Laptop: Simple Ways to Improve Performance

Your laptop takes minutes to start, freezes when you open a few browser tabs, and the fan sounds like a small jet. It is a daily frustration, and it usually has a fixable cause. This guide walks through the settings Microsoft and Apple document for Windows and Mac, plus the hardware checks that matter most.

Quick Info: The 60-Second Optimization

1. Save your work and restart the laptop. On Windows, select Start > Power > Restart.
2. Close browser tabs and apps you are not using. Apple’s Mac guidance also says to quit any apps you are not using.
3. On Windows, press Ctrl + Shift + Esc, select Startup apps, and disable anything you do not need at startup.
4. On Windows, select Start, type Adjust the appearance and performance of Windows, and choose Adjust for best performance.
5. On Windows 11, open Settings > System > Power & battery and set the power mode to Best performance while plugged in.

Key Takeaways

• A mechanical hard drive (HDD) is slower by design. It reads data with moving parts, while a solid state drive (SSD) has none. Swapping an HDD for an SSD is one of the most common hardware upgrades for an older laptop.
• RAM runs out before most people expect. Heavy browser use, video calls, and office apps all compete for memory. Many reviewers treat 8 GB as a practical starting point for everyday multitasking, but check what your laptop model supports before you buy anything.
• Heat quietly slows the processor. Chips are built to lower their speed when they get too hot, which is called thermal throttling. Blocked vents and dust make this happen more often.
• Free storage space matters. Both Microsoft and Apple tell users to free up drive space when a computer runs slowly.
• A clean OS reinstall is a last resort. Try the steps in this guide first. If you do reinstall, back up your files before you start.

How This Guide Was Verified

We verified every configuration route in this guide directly against the official 2026 support documentation from Microsoft and Apple to ensure accurate technical pathways for your device.

The Windows steps follow Microsoft’s pages on performance tips, startup apps, and freeing up drive space. The Mac steps follow Apple’s “If your Mac runs slowly” page and the Activity Monitor User Guide. Every route uses built-in tools, so you do not need a registry cleaner or any third-party “optimizer.”

This guide compiles documentation. It does not include results from our own lab benchmarks, and we do not claim specific speed gains. Menu names can differ slightly between Windows 10, Windows 11, and macOS versions.

Diagnosing Your Laptop’s Performance Bottlenecks

1. Disabling Resource-Heavy Startup Apps and Background Processes

Every app that launches at startup uses memory and processor time before you have done anything. Cutting the list is one of the quickest fixes on Windows.

Disable Startup Apps in Task Manager (Windows)

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Select Startup apps. In Windows 11 this is also a sidebar icon.
3. Look at the Startup impact column. Microsoft says it shows whether an app has a None, Low, Medium, or High impact on startup.
4. Select an app you do not need at startup.
5. Select Disable.

Disabling an app only stops it from launching automatically. You can still open it yourself whenever you want.

Disable Startup Apps in Settings (Windows)

1. Open Start > Settings > Apps > Startup.
2. Switch the toggle to Off next to any app you do not want at startup.

Be Careful What You Turn Off

Leave your security software and anything from the laptop maker’s driver tools alone unless you know what it does. If you are not sure, search the app name before you disable it.

Turn Off Background Apps (Windows)

Microsoft’s performance page also lists background permissions for apps.

1. Open Start > Settings > Apps > Installed apps.
2. Find the app, open its menu, and open its advanced options.
3. Under background app permissions, choose Never if the app does not need to run in the background.

The exact wording of this setting can change between Windows versions, so use the search box in Settings if you cannot find it.

Find Heavy Processes on a Mac

Apple’s Activity Monitor shows what is using your Mac’s processor and memory. It lives in the Utilities folder inside Applications.

1. Open Finder > Applications > Utilities > Activity Monitor.
2. Select the CPU or Memory tab.
3. Look for a process using far more than the others. Apple says unresponsive processes appear in red and are labeled Not Responding.
4. Select the process and click the Stop button in the upper-left corner of the window.
5. Choose Quit or Force Quit.

Apple says Quit works like choosing File > Quit in an app, and the process quits when it is safe to do so. Force Quit closes it immediately, which can lose unsaved data and can cause problems for other apps that depend on it. Try Quit first.

Apple also notes that you might need administrator authentication to quit processes you do not own. If you do not recognize a process, leave it alone.

Check Your Power Mode (Windows 11)

1. Open Start > Settings > System > Power & battery.
2. Open the Power mode drop-down.
3. Choose Best performance.

This uses more battery, so it makes the most sense when the laptop is plugged in.

2. Cleaning System Storage Buffers and Deleting Temporary Files

A nearly full drive slows a laptop down. Microsoft and Apple both list free drive space as a first thing to check.

Clean Up Storage in Windows 11

1. Open Start > Settings > System > Storage.
2. Select Cleanup recommendations.
3. Review the categories. Microsoft lists Temporary files, Large or unused files, Files synced to the cloud, and Unused apps.
4. Tick what you want to remove. Windows shows how much space you will save.
5. Select Clean up.

If you see Previous Windows installation or Delivery Optimization Files in the list, you can review them here too. Microsoft warns that if you delete your previous version of Windows, you cannot undo it or go back to that version. Microsoft says this option may appear for fewer than 10 days after an upgrade.

Use Storage Sense (Windows)

Microsoft also recommends Storage Sense, which frees up space automatically.

1. Open Start > Settings > System > Storage.
2. Select Storage Sense.
3. Select Run Storage Sense now.

Microsoft’s guidance is to try the cleanup steps in order and check how much space you freed after each one.

Uninstall Apps You No Longer Use

1. Open Start > Settings > Apps > Installed apps.
2. Find an app you do not use.
3. Open its menu and choose Uninstall.

Optimize Your Drive (Windows)

1. Select Start and type Defragment and Optimize Drives.
2. Select your drive.
3. Select Optimize.

This is a Microsoft-listed tip. Windows manages the right kind of optimization for your drive type, so you do not need to choose.

Free Up Space on a Mac

Apple’s page says a startup disk with too little free space can slow a Mac down.

1. Open Apple menu > System Settings > General > Storage.
2. Review what is taking up room.
3. Move files to external storage or delete files you do not need.

Back Up Before You Delete

Deleting files is permanent in many cases. If your laptop is full of photos and documents, copy them to an external drive or cloud storage first.

3. Optimizing Virtual Memory Allocation and Storage Space

Virtual memory lets Windows use part of your drive as extra working space when RAM fills up. It is also called the paging file. Most people never need to touch it.

What Microsoft Says About the Paging File

Microsoft states that page files are system-managed by default. The system increases and decreases them based on factors such as the amount of installed memory and what the system needs at the time.

For most laptops, that means the safest choice is to leave it alone.

Where to Find the Setting (Windows)

This is the path commonly used on Windows. Microsoft’s page file article does not list the menu steps itself, so menu names may vary slightly.

1. Open Settings > System > About.
2. Select Advanced system settings.
3. On the Advanced tab, select Settings under Performance.
4. Open the Advanced tab in the new window.
5. Select Change under Virtual memory.

You will see a checkbox called Automatically manage paging file size for all drives. Leave it ticked unless you have a specific reason to change it.

When It Might Make Sense to Change It

If your main drive is almost full, the better fix is usually to free up space with the steps in section 2. If you do set a custom size, you can choose a faster drive such as an SSD for the paging file, but only when the laptop has more than one drive.

Write down the original settings before you change anything. If the laptop becomes unstable, switch back to Automatically manage paging file size for all drives.

Adjust Visual Effects (Windows)

Animations and shadows use a little processing power. This setting trades some looks for speed.

1. Select Start and type Adjust the appearance and performance of Windows.
2. Open the result.
3. Select Adjust for best performance.
4. Select Apply, then OK.

Keep Windows Updated and Scan for Malware

Microsoft’s performance page lists updates and malware scans among its first steps.

1. Open Start > Settings > Windows Update > Check for updates.
2. Open Start > Settings > Privacy & security > Windows Security > Virus & threat protection.
3. Run a Quick scan.

Where Apple Fits In

macOS handles virtual memory on its own. Apple’s Activity Monitor shows Swap Used, which Apple describes as startup disk space used for RAM overflow. A large number there points back to memory pressure, which is covered next.

4. Checking Hardware Diagnostics: RAM Upgrades and Thermal Health

Software fixes only go so far. If the steps above do not help enough, the limit may be the hardware.

Check RAM Use on Windows

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Select Performance.
3. Select Memory and look at how much is in use while you work.

If memory stays near full during normal tasks, closing apps will help. If it is full all the time, more RAM may be the better fix.

Check Memory on a Mac

1. Open Activity Monitor and select the Memory tab.
2. Check Memory Used and Swap Used at the bottom of the window.
3. Look at the Memory Pressure graph.

Apple says the Memory Pressure graph shows how efficiently your memory is serving your processing needs. Apple’s page does not explain the graph colors, so check Apple’s documentation for your macOS version.

Can You Add RAM?

It depends on the laptop. Some models have RAM slots you can open, and others have memory built onto the board. Check your laptop maker’s support page for your exact model before you buy anything.

For a Mac, Apple’s “If your Mac runs slowly” page suggests checking Apple menu > System Settings > General > About to see your Mac’s specifications.

Consider an SSD Upgrade

If your laptop still has a mechanical hard drive, an SSD is a common upgrade. Disk speed affects boot time and how fast apps open. Your laptop maker can tell you which drive types and sizes your model accepts.

Check Thermal Health

When a laptop gets hot, the processor can lower its speed to protect itself. You will notice this as stutters, and the fan often gets loud at the same time.

1. Place the laptop on a hard, flat surface.
2. Make sure the vents are not blocked.
3. Check for dust at the vents. If you are not comfortable opening the laptop, ask a repair shop.
4. Check Task Manager or Activity Monitor for a process using a lot of CPU.

When a Clean Reinstall Makes Sense

A clean OS reinstall can help if the system is badly damaged, but it takes time and erases your settings. Treat it as a last step. Back up your files first and have your software license information ready.

More Guides From Tech Origin Hub

If you use an Android phone alongside your laptop, a few of our other guides may help. If the phone is slow or crashing, see How to Turn On and Turn Off Safe Mode on Android. If the battery is the problem, our guide on How to Fix a Phone That Is Not Charging: Causes and Solutions covers the common causes.

Moving between devices? Read How to Transfer Contacts to a New Phone: Android, iPhone, and Everything in Between. If you play audio from your laptop and your phone speaker is also acting up, see How to Fix Phone Speaker Problems: Step-by-Step for iPhone, Pixel, and Samsung.

For official reference, see Microsoft’s official Windows performance support page and Apple’s official Mac optimization guidelines.

Common Mistakes That Can Ruin Your Laptop

• Downloading registry cleaners or “one-click optimizers.” Many contain malware or change settings you cannot easily undo. Windows already has the built-in tools listed above.
• Deleting files from the System32 folder. Windows needs those files to run. Removing the wrong one can stop the laptop from starting.
• Using the laptop on a bed or sofa. Soft surfaces can block the vents, which raises heat and can trigger thermal throttling.
• Disabling every startup app. Some belong to security software or drivers. Disable only what you recognize and do not need.
• Force Quitting without trying Quit first. On a Mac, Force Quit can lose unsaved data. Apple says to expect that risk.
• Deleting your previous Windows installation without thinking. Microsoft says you cannot undo it, and you will not be able to go back.
• Changing the paging file without a reason. Microsoft says it is system-managed by default. A wrong custom size can make things worse.
• Skipping the backup. Back up your important documents before you change system settings, delete files, or reinstall the operating system.

Frequently Asked Questions

Why is my laptop so slow all of a sudden?

Common causes are too many startup apps, a nearly full drive, or a pending update. Start with a restart, then check Task Manager on Windows or Activity Monitor on a Mac for a process using a lot of resources.

How do I speed up my laptop for free?

Restart it, close unused apps, disable startup apps, free up drive space, and keep the system updated. Microsoft and Apple both list these as first steps.

Should I change the paging file size?

Usually not. Microsoft says page files are system-managed by default, and it adjusts them as needed. Freeing up drive space is the better first step.

Will more RAM make my laptop faster?

It can, if your memory is full during normal use. Check Task Manager or Activity Monitor first, then confirm that your laptop model supports an upgrade.

Is it safe to use a PC cleaner app?

We do not recommend third-party cleaner or registry apps. Use the tools built into Windows and macOS, and always download software from sources you trust.

Disclaimer:

This article is for general educational and informational purposes only. It compiles official optimization steps from the support documentation of Microsoft and Apple. Technical pathways may vary based on your specific operating system version, software build, or hardware configuration. Always back up your critical documents before altering system settings.