How to Speed Up a Laptop: 15 Fixes, From Free to Hardware

At a Glance

• Start by measuring. Task Manager (Windows) or Activity Monitor (Mac) shows whether the processor, memory, or drive is the bottleneck.
• Free fixes come first. Restart, update, trim startup items, tame browser tabs, free up storage, scan for malware, and check your power mode.
• Heat can be the whole problem. Dust and soft surfaces make laptops slow themselves down to protect the hardware.
• Biggest published hardware jump: replacing a hard drive with an SSD. A RAM upgrade only helps if memory is actually the limit, and only if your laptop has slots.
• Windows 10 reminder: support ended on October 14, 2025. Consumer Extended Security Updates run through October 12, 2027, but they add security fixes only, not speed.
• Skip: registry cleaners, “RAM booster” apps, and anything that promises a one-click fix.
• Time needed for the basics: about 15 to 30 minutes.

A laptop rarely slows down for one dramatic reason. It’s usually a pile of small things: too many programs launching at sign-in, a browser holding dozens of tabs, a nearly full drive, a power setting quietly favoring battery life, and dust in the fans. That’s good news, because most of the fixes are free and none need special skills.

This guide explains how to speed up a laptop in the order that makes sense: diagnose first, apply the software fixes, check for heat, and only then consider hardware changes. It’s built on published guidance from Microsoft and Apple, plus published comparisons of storage and memory. It isn’t based on personal hands-on time with specific machines, and where the evidence is thin, we say so.

If you’ve been searching for how to speed up a slow laptop, the sections below apply to most Windows 11 and Mac models. A few steps depend on your hardware, and we flag those.

Step One: Find Out What Is Actually Slow

Most “speed up my laptop” advice skips this step, and it’s the one that saves the most time. Microsoft’s own guidance starts with monitoring CPU, memory, and disk use to identify the processes slowing a PC down, including a look at the Performance and Startup apps tabs. A fix aimed at the wrong bottleneck does nothing.

Reading Task Manager on Windows

Press Ctrl+Shift+Esc to open Task Manager. On the Processes tab, sort by CPU, Memory, and Disk in turn. A few patterns are worth knowing:

• One app near the top of CPU usually means that app (or a stuck background process) is the issue.
• Memory climbing toward its limit while you work suggests you’re asking more of the laptop than its RAM can hold.
• Disk sitting near 100 percent during ordinary tasks points at storage, which is especially common on laptops with a traditional hard drive.

Reading Activity Monitor on Mac

Open Activity Monitor (Applications > Utilities) and check the Memory tab’s Memory Pressure graph. According to one published Mac troubleshooting guide, repeated yellow or red pressure, high swap use, and slowness while several apps are open indicate the workload may exceed the Mac’s available memory. The Disk tab helps separate a slow app from a busy system, and storage capacity is under System Settings > General > Storage.

Symptom-to-Cause Cheat Sheet

What you notice	Likely cause	First move
Slow only right after sign-in	Too many startup items	Trim startup apps or login items
Slow with many tabs open	Browser memory	Turn on Memory Saver or sleeping tabs, close tabs
Slow all the time, drive nearly full	Low storage	Free up space
Starts fast, slows during heavy work, fans loud	Heat	Clean vents, use a hard flat surface
Slow only on battery	Power mode or Energy Saver	Adjust power mode
Sluggish for days after a big update	Background indexing and updates	Restart, give it time
Slow even after the above, with a hard drive	Storage speed	Consider an SSD

How to Speed Up a Slow Laptop for Free

These nine fixes cost nothing and carry little risk. Work through them in order, and restart between changes if you want to know which one helped.

1. Restart and Install Updates

It sounds too simple, but Microsoft’s guidance lists closing unused apps and restarting the PC as a first step, since many open apps or browser tabs can slow performance. After a restart, check for updates. On Windows 11, go to Settings > Windows Update > Check for updates, and look at Optional updates as well, since driver updates often appear there. On a Mac, check System Settings > General > Software Update.

If you just upgraded or installed a big update, give the laptop a day. A Microsoft community moderator notes that a newly upgraded Windows 11 system may feel slow for a while.

2. Trim Startup Apps and Login Items

Every program that launches at sign-in competes for memory and disk time right when you want the laptop to be responsive.

• Windows: Open Task Manager and go to the Startup apps tab, or use Settings > Apps > Startup. Disable apps you don’t need immediately, especially chat clients, game launchers, and updaters for software you rarely open. Leave security software, touchpad and audio drivers, and anything you don’t recognize until you’ve looked it up.
• Mac: Open System Settings > General > Login Items & Extensions and remove items you don’t need at startup.

Disabling a startup item doesn’t uninstall the program. You can still open it manually.

3. Tame Browser Memory

For many people, the browser is the single biggest memory consumer on the laptop. On machines with 8 to 16GB of RAM, accumulated tabs can become a noticeable share of total memory.

Modern browsers include tools for this:

• Chrome’s Memory Saver puts inactive tabs to sleep and reloads them when you return. Google introduced it in Chrome 108 to reduce the browser’s memory used by inactive tabs. Find it under Settings > Performance.
• Edge’s sleeping tabs do something similar, and Microsoft says sleeping tabs can free memory and CPU resources for active tabs and other applications. Sleeping tabs are on by default in Edge.

Two honest limits. These features reduce memory from inactive tabs, but they don’t reduce the memory taken by the tab you’re actively using, and they don’t reduce extension overhead. If the browser is still slow, review your extensions. Remove the ones you don’t recognize or no longer need.

4. Free Up Storage

Microsoft states plainly that low disk space can reduce system performance. Here is a sensible cleanup order on Windows:

1. Open Settings > System > Storage.
2. Select Temporary files, review the list, and remove what you don’t need.
3. Make sure the option to automatically clean up temporary system and app files is turned on.
4. Move large files (video, old downloads, backups) to external media or cloud storage.

If you use OneDrive, syncing can slow a PC. Microsoft suggests pausing sync temporarily to see if it helps, and using Files On-Demand so fewer files stay stored locally.

On a Mac, use System Settings > General > Storage to see what’s taking up space, and consider old device backups and large unused apps.

How much free space is enough? There’s no single manufacturer-mandated number. One published Mac guide notes that no Apple-mandated percentage guarantees good performance, though a nearly full startup disk can worsen swapping and updates. Third-party Windows guidance commonly suggests leaving at least 10 to 20 percent free. Treat that as a rule of thumb, not a rule.

5. Run a Malware Scan

Microsoft notes that malware can consume CPU and disk resources and reduce performance. On Windows 11, go to Settings > Privacy & security > Windows Security > Virus & threat protection and run a scan. If something can’t be removed, Microsoft’s guidance includes running Microsoft Defender Offline, which restarts the PC and scans before Windows fully loads.

Mac users can review what’s running in Activity Monitor and remove software they don’t recognize. Be cautious about downloading “cleaner” apps in response to a scare.

6. Check Your Power Mode

This one is easy to overlook, and it can explain a laptop that feels slow only sometimes. Windows 11 offers three power modes under Settings > System > Power & battery: Best power efficiency, Balanced, and Best performance.

• Best power efficiency can limit background activity whether the laptop is plugged in or on battery, according to Microsoft.
• Windows 11 24H2 and later also includes Energy Saver, which is meant to reduce power use when the battery is low and can limit background activity.
• Best performance uses more energy, so battery life drops.

If a plugged-in laptop feels sluggish, check that you haven’t left it in an efficiency mode. For everyday use, Balanced is a reasonable default.

7. Reduce Visual Effects

Microsoft’s guidance says Windows 11 visual effects can take system resources and that adjusting them can improve responsiveness. Search for “Adjust the appearance and performance of Windows,” open it, and choose Adjust for best performance on the Visual Effects tab.

Based on Microsoft’s guidance and the relatively low resource demands of modern visual effects, the gain on a modern laptop is likely to be small, because animation effects take little processing power on current hardware. It’s most worth trying on an older or lower-powered machine.

8. Pause Sync and Background Activity

Cloud sync, indexing, and background apps all take a share of resources. Microsoft’s guidance says turning off background activity can improve performance. In Windows, review which apps are allowed to run in the background, and reduce unneeded notifications, which another Microsoft community answer notes can slightly improve performance and reduce interruptions.

9. Uninstall What You Don’t Need, and Skip the “Cleaner” Apps

Uninstall programs you no longer use. Be careful with third-party “PC optimizer” software. One Microsoft community reply specifically cautions against software that can modify Windows files and registry entries. If you want an all-in-one tool, Microsoft offers its own app, Microsoft PC Manager. The built-in Storage settings and startup controls cover most of the same ground.

Heat: When Your Laptop Slows Itself Down

Thermal throttling is a protective mechanism. When internal temperatures climb too high, the processor lowers its speed to avoid damage. It’s not a defect, but it does feel like the laptop getting slow.

The common causes are well documented:

• Dust buildup in vents and fans. ASUS’s ROG guide calls dust the most common cause of gaming-laptop heat problems, and the same physics applies to any laptop.
• Soft surfaces like beds and sofas that block the intake vents.
• Aged thermal paste between the processor and heatsink on older machines.

What to do:

1. Move the laptop to a hard, flat surface. It’s free, and it’s often the whole fix.
2. Clean the vents. Power the laptop off, unplug it, and use short bursts of compressed air through the vents. ROG suggests doing this every three to six months.
3. Consider a cooling pad only after the vents are clean. A cooling pad can reduce temperatures in some situations, but its effect depends heavily on the laptop’s cooling design and airflow.
4. Be careful with thermal paste. ROG warns that opening the laptop can affect your warranty and risks damage. Unless you’re comfortable with disassembly, have a qualified technician do it.

On a Mac, a published troubleshooting table links loud fans with falling performance to heavy processing or poor ventilation, and suggests checking Activity Monitor and airflow.

Hardware Upgrades That Change How a Laptop Feels

If the software fixes didn’t help enough, hardware is next. Two upgrades matter most, and one of them may not be possible on your laptop.

Replace a Hard Drive With an SSD

If your laptop still has a spinning hard drive, replacing it with an SSD can be one of the most noticeable upgrades you can make. Here is what published comparisons show.

Published Benchmark Comparison

Drive type	Typical sequential read	Windows boot time in one published comparison
Hard drive (7200 RPM)	100 to 160 MB/s	38.7 seconds
SATA SSD	500 to 550 MB/s	11.4 seconds
NVMe SSD (PCIe 3.0)	3,000 to 3,500 MB/s	Not reported
NVMe SSD (PCIe 4.0)	5,000 to 7,000 MB/s	8.2 seconds

Speed ranges come from a published storage comparison. These boot times come from one third-party test system and should not be treated as universal results. Actual boot times vary with the laptop, operating system, drive, firmware, startup software, and test method.

The takeaway is in the shape of the numbers. Going from a hard drive to any SSD is a big jump. Going from a SATA SSD to NVMe is smaller in everyday use. One published guide says the SATA-to-NVMe difference is noticeable mainly in large file work, some game loading, and heavy multitasking.

Compatibility matters more than speed ratings:

• Check what your laptop accepts. An M.2 slot can be SATA or NVMe, so confirm which one before buying. Older laptops may have a 2.5-inch bay instead.
• Back up first, and plan how you’ll move your data, either by cloning the old drive or doing a clean install.
• On a Mac, recent models generally don’t offer user-replaceable storage, so check Apple’s documentation for your model before buying anything.

Add or Replace RAM, If You Can

More memory helps when your laptop is genuinely running out of it, such as sustained high memory use in Task Manager or red Memory Pressure on a Mac. If memory isn’t near its limit during your slow moments, extra RAM won’t help much.

First, find out whether your RAM is upgradeable:

• Soldered LPDDR memory usually can’t be upgraded. Many laptops use LPDDR4X, LPDDR5, or LPDDR5X memory soldered directly to the motherboard, but newer LPCAMM2 designs use LPDDR5X memory in a replaceable module. Check the manufacturer’s specifications or service documentation before assuming the memory is fixed.
• SO-DIMM slots can be upgraded. In Windows Task Manager, open Performance > Memory and look at the “Slots used” field. If it shows something like 1 of 2, you have physical slots.
• Hybrid layouts exist, with some memory soldered and one slot open.
• A newer module type, LPCAMM2, is also replaceable.
• Crucial’s System Scanner is a free tool that identifies your model and tells you whether the RAM is upgradeable.

A few practical rules:

• DDR4 and DDR5 SO-DIMMs aren’t interchangeable. Confirm which one your laptop takes.
• If your laptop has two slots and only one stick installed, one published guide notes that two matched modules is usually more valuable than a single larger one.
• Verify the maximum supported capacity in the manufacturer’s documentation, not just a retailer listing.

If you’re planning to replace your laptop rather than upgrade it, our guide to laptop memory and storage requirements explains the hardware specifications to consider when choosing a new system.

When Replacing Beats Upgrading

Upgrades make sense when the laptop is otherwise sound. It’s worth thinking about replacement if memory is soldered and too small for your work, the processor is the bottleneck, the battery has degraded, or the laptop can no longer receive security updates. In our analysis, spending effort on a machine that can’t be patched or expanded is rarely a good trade.

If you’re considering replacing an older laptop, our comparison of AI laptops vs traditional laptops explains the hardware differences and the capabilities worth considering before buying a new machine.

The Last Software Step: Reset or Reinstall

If a laptop is slow after everything above and hardware checks out, a clean start can remove years of accumulated software. On Windows 11, Settings > System > Recovery includes a Reset this PC option. On a Mac, reinstalling macOS is an option, and Apple’s own community guidance recommends having a recent Time Machine backup first.

Back up everything before you start. A reset only helps if the slowness comes from software. It won’t fix heat, a failing drive, or too little memory.

Windows 10 Laptops: Updates Matter

Windows 10 support ended on October 14, 2025. Microsoft no longer provides free software updates, security fixes, or technical assistance for it, though the laptop keeps working. Consumer Extended Security Updates can protect an eligible Windows 10 PC through October 12, 2027, but Microsoft says ESU doesn’t include feature improvements or technical support.

That matters here for a simple reason. A laptop slowed down by malware or by unpatched software is a security problem first. Extended updates keep you protected, but they won’t make the laptop faster. If your laptop is eligible for Windows 11, upgrading is a decision worth making; Microsoft’s own pages recommend it.

Our Analysis: What to Do First

Here is how the fixes compare. The ratings are our qualitative reading of published guidance, not measured results.

Feature Comparison

Fix	Effort	Risk	Helps most when
Restart and update	Very low	Very low	Slowness after long uptime or a pending update
Trim startup items	Low	Very low	Sluggish right after sign-in
Browser memory settings	Low	Very low	Many tabs on 8 to 16GB of RAM
Free up storage	Low to medium	Low	Drive nearly full
Malware scan	Low	Very low	Unexplained CPU or disk activity
Power mode check	Very low	Very low	Slow only on battery or in efficiency mode
Visual effects	Low	Very low	Older or low-powered machines
Dust cleaning	Medium	Low	Loud fans, slowdown under load
SSD upgrade	Medium to high	Medium	Laptop has a hard drive
RAM upgrade	Medium	Medium	Memory near its limit and slots available
Reset or reinstall	High	Medium	Software slowdown that survives everything else

The order we’d follow: measure, then do the free fixes, then check heat, then consider an SSD if there’s a hard drive, then RAM if memory is really the limit, and finally a reset.

Mistakes That Make Things Worse

• Running registry cleaners or multiple “optimizers.” They add risk and, according to Microsoft’s own community guidance, can modify files and registry entries you’d rather leave alone.
• Turning off security software to gain speed. Malware costs more performance than antivirus ever will.
• Leaving Best performance on all the time on battery. It drains the battery faster, and you may not need it.
• Deleting system files to free space. Use the Storage tool, which knows what’s safe to remove.
• Opening the laptop without checking warranty terms. This applies to thermal paste and any internal work.
• Buying RAM or an SSD before checking compatibility. Confirm slots, type, and capacity first.

Where Laptop Speed Is Heading

A few developments are worth watching, though we’d treat them as direction, not promises.

Browsers are getting smarter about memory. One source says Chrome’s Memory Saver gained machine-learning prediction in Chrome 140. Windows now ties efficiency to Energy Saver in 24H2 and later. On the hardware side, LPCAMM2 modules offer a path to replaceable memory in thin laptops that would otherwise have soldered RAM. And Microsoft’s Copilot+ PC category points toward more on-device AI processing, which is relevant mainly to AI tasks, not general responsiveness.

For a closer look at the hardware behind this shift, our guide to AI PC hardware explains the roles of CPUs, GPUs, and NPUs in modern computers.

None of this replaces the basics. A clean startup list, enough free storage, and good airflow will matter on every laptop for the foreseeable future.

FAQs

Q: Why is my laptop so slow all of a sudden?

A: Common causes include a pending update running in the background, a new startup program, a nearly full drive, malware, or heat. Open Task Manager (Windows) or Activity Monitor (Mac) and see what’s taking resources. A restart is the first thing to try.

Q: How can I speed up my laptop for free?

A: Restart it, install updates, trim startup items, turn on your browser’s memory saver, free up storage, run a malware scan, and check your power mode. All of these are free and low risk.

Q: Will adding RAM speed up my laptop?

A: Only if memory is actually the limit. If Task Manager shows memory near its ceiling during slow moments, more RAM can help. If it doesn’t, the bottleneck is elsewhere. Also confirm your RAM isn’t soldered.

Q: Will an SSD make my laptop faster?

A: If your laptop has a hard drive, published comparisons show it can be one of the most noticeable upgrades, with boot times in one comparison falling from about 39 seconds to about 11. If you already have an SSD, a faster one makes a smaller difference in everyday use.

Q: How much free storage should I keep?

A: No manufacturer sets one number. Third-party guidance commonly suggests keeping 10 to 20 percent of the drive free. Microsoft says only that low disk space can reduce performance.

Q: Does a cooling pad help?

A: A cooling pad can reduce temperatures in some situations, but its effect depends heavily on the laptop’s cooling design and airflow. A pad can’t fix dust that’s clogging the inside.

Q: Do PC cleaner apps work?

A: Built-in tools handle most of what they promise. Microsoft’s own community guidance cautions against software that modifies Windows files or the registry. If you want an all-in-one tool, Microsoft PC Manager is Microsoft’s own.

Q: Will resetting my laptop make it faster?

A: It can, if the slowness comes from software buildup. It won’t help with heat, a failing drive, or too little memory. Back up first.

Q: How often should I clean the fans?

A: ROG’s guide suggests clearing dust with compressed air every three to six months. A dusty environment or a laptop on soft surfaces may need it more often.

Q: Is it worth upgrading an old laptop?

A: If the laptop is eligible for current security updates and has a hard drive or an upgradeable memory slot, an SSD or RAM upgrade can be reasonable. If memory is soldered, the processor is the limit, or the laptop can’t be patched, replacement is usually the better path.

Final Thoughts

Speeding up a laptop is mostly detective work followed by simple fixes. Measure what’s slow, clear out startup clutter, give the browser and storage some breathing room, check power mode and heat, and only then spend money on hardware. If the laptop has a hard drive, an SSD is the one upgrade with strong published backing. If it doesn’t, the free fixes get you most of the way, and a RAM upgrade is worth considering only when memory is genuinely the limit and the slots exist.

Keep realistic expectations. These steps restore the performance your laptop was built for. They can’t make an aging processor fast, and they can’t turn a machine that no longer receives security updates into a safe one. Start with the free fixes, work down the list, and stop when it feels fast enough.