Gadget Scout Performance Guide

How to Speed Up a Slow Windows 11 Laptop Without Buying Anything

Free, practical fixes that genuinely work — and the honest truth about when a cheap upgrade is finally worth it.

There's a particular kind of dread that creeps in when you press the power button and your laptop takes the best part of a minute to show you a usable desktop. The temptation is to assume the machine is "past it" and start browsing for a replacement. But in my experience, the vast majority of slow Windows 11 laptops aren't broken at all — they're just clogged up. Before you spend a single penny, there's a whole toolbox of free fixes built straight into Windows that can transform a laggy machine into something perfectly pleasant to use again.

This guide walks through those free fixes in priority order — starting with the changes that deliver the biggest improvement for the least effort — and then, only when it's genuinely justified, explains exactly when an SSD or RAM upgrade is worth the modest outlay. The whole philosophy here is simple: exhaust the free stuff first, because nine times out of ten it's all you'll need.

What we'll cover

  • Why Windows 11 laptops slow down
  • Disabling startup apps (biggest win)
  • Turning off visual effects
  • Switching power mode
  • Stopping background app activity
  • Keeping Windows & drivers updated
  • Freeing up storage with Storage Sense
  • The free-fix checklist compared
  • When an SSD or RAM upgrade is worth it
  • FAQs & final verdict

Why Windows 11 Laptops Slow Down in the First Place

Before throwing fixes at the problem, it helps to understand what's actually causing the slowdown — because that tells you which fix will help most. A Windows device can run slowly for several distinct reasons: limited storage space, too many startup apps running in the background, outdated software, or hardware that simply no longer meets modern performance needs.

Crucially, slowness usually comes from software bloat, background processes, or storage bottlenecks far more often than it comes from an inevitable need for new hardware. Over time, systems quietly accumulate unnecessary files, background apps, and settings that chip away at performance. Outdated drivers can make the situation worse still.

Windows 11 itself plays a part. It takes up more RAM than older versions of the operating system even when you have no apps open. That extra memory usage is mostly down to the large suite of background services and telemetry the OS runs by default. On top of that, the Windows 11 24H2 update introduced some critical bugs that triggered performance safeguards on certain systems, and anecdotal complaints about persistent "jankiness" and resource spikes have stuck around. So if your machine feels worse than it used to, you're not imagining it.

Top Cause
Too many startup apps
Common Cause
Background processes
Bottleneck
Low free storage
OS Overhead
Higher RAM use than older Windows
Hidden Drag
Outdated drivers
Known Issue
24H2 update bugs
Visual Cost
Animations & transparency
Fix Cost
£0 for most fixes

The golden rule

Always work through the free software fixes before reaching for your wallet. The most dramatic speed gains almost always come from removing software clutter — not from new hardware. If you've never touched your startup apps, you've got a huge improvement waiting for free.

Fix 1: Disable Startup Apps (The Single Biggest Win)

If you do only one thing from this entire guide, make it this. Disabling startup apps is the low-hanging fruit of PC optimisation. Windows 11 lets a surprising number of apps launch automatically at startup by default, and they sit there hogging resources before you've even opened the first program you actually wanted to use.

Think about it: every chat client, updater, cloud-sync tool and "helper" app that launches on boot is competing for your processor, memory and disk the moment you log in. On an older laptop with limited resources, that's the difference between a desktop that's ready in seconds and one that thrashes for a minute before it'll even respond to a click.

How to do it

Step 1 — Open Task Manager

Press Ctrl + Shift + Esc to open Task Manager directly.

Step 2 — Go to Startup apps

Select Startup apps from the left-hand menu.

Step 3 — Disable what you don't need

Right-click the apps you want to stop and select Disable. They'll still work normally — they just won't launch on boot.

Reducing startup apps can significantly shorten your boot time and make the system noticeably more responsive after login. It's genuinely one of the easiest ways to make Windows 11 faster without spending money or touching the hardware.

One important caveat: be careful not to disable important security software. Your antivirus or endpoint protection should generally be left to start with Windows. If you're unsure what something is, leave it enabled rather than risk it.

Fix 2: Turn Off Visual Effects and Animations

Windows 11 is a handsome operating system. It includes modern design features such as transparency, animations, shadows and smooth transitions that make everything feel polished and contemporary. The trouble is, all that polish uses extra resources — and older laptops and budget PCs can really struggle to render it smoothly.

This isn't just my opinion, either; Microsoft itself has highlighted how the various Windows 11 visual effects can slow your PC, and there's a dedicated option built into the OS specifically to disable them if they're too heavy for your device. That's a fairly strong hint that turning them off is a legitimate performance lever rather than a placebo.

How to do it

Select Start, type "Adjust the appearance and performance of Windows" and open it. On the Visual Effects tab, select "Adjust for best performance." That single toggle strips out the animations, fades and shadows in one go.

If you find the fully stripped-back look a little too austere, you can re-enable a couple of effects individually — smoothing font edges is one most people like to keep — whilst leaving the heavier animations off. The result is a snappier interface where windows pop open instantly rather than gliding in.

Pro tip

The difference is most dramatic on laptops with integrated graphics and limited memory. If your menus and Start panel feel like they're moving through treacle, this fix alone can make the whole machine feel a generation newer.

Fix 3: Switch Your Power Mode to Best Performance

By default, Windows runs in "Balanced" power mode, which deliberately limits performance to save battery life. That's sensible when you're away from a plug, but if you're mostly using your laptop docked or plugged in at a desk, there's genuinely no reason to handicap yourself like that.

How to do it

Head to Settings > System > Power & battery and change your power mode to "Best performance." You'll often feel the difference immediately in how quickly apps launch and how responsive everything feels under load.

The trade-off: selecting Best performance increases power consumption. On a laptop, this setting will drain the battery more quickly and may cause the device to run warmer. Use it only when you need maximum performance and power availability isn't a concern — typically when you're plugged in.

My honest recommendation is to treat this as a situational switch rather than a permanent setting. Flick it to Best performance when you're at your desk and want everything snappy, and drop back to Balanced when you head out and need the battery to last.

Fix 4: Stop Apps Running in the Background

Even apps you're not actively using can keep running background processes — checking for updates, syncing data, listening for notifications. Individually they're trivial, but collectively they nibble away at your memory and processor cycles all day long. Turning off background activity for the apps that don't need it can free up real resources.

How to do it

Step 1

Go to Start > Settings > Apps > Installed apps.

Step 2

Find the app you want to manage, select More options (…), then Advanced options.

Step 3

Under Background app permissions, in the "Let this app run in the background" list, select Never.

I'd focus this on the apps you genuinely only open occasionally — games launchers, photo editors, the odd utility. Leave background access enabled for anything where you actively rely on its notifications or live updates, such as messaging and email, otherwise you'll wonder why alerts have gone quiet.

Fix 5: Keep Windows and Drivers Updated

It feels counter-intuitive — surely updates make things slower? — but keeping Windows up to date is one of the quiet workhorses of performance maintenance. Updates bundle in performance fixes, driver revisions and security patches, and some slowdowns are simply the result of known bugs that have already been fixed in a later cumulative update. Staying current means you actually benefit from those fixes instead of suffering problems that have already been solved.

How to do it

Open Settings, scroll to Windows Update on the left sidebar and hit Check for updates. Install anything pending and restart when prompted.

Driver note: if you rely on maximum performance — particularly for graphics — use your device manufacturer's support site for GPU and chipset drivers. Windows Update doesn't always carry the absolute latest GPU driver, so OEM or GPU-vendor downloads can be preferable when you're chasing performance fixes.

Given the 24H2 troubles mentioned earlier, this fix is more relevant than ever. If your machine started misbehaving after a major feature update, checking for and installing the latest cumulative update is often the route back to stability.

Fix 6: Free Up Storage with Storage Sense and Disk Cleanup

This one is hugely underrated. Running out of disk space can drastically slow down a Windows 11 PC — causing programs to freeze, updates to fail and overall performance to drop off a cliff. A drive that's nearly full has nowhere to put temporary files or virtual memory, and the whole system grinds as a result.

The good news is that Windows includes a brilliant built-in tool for this. Storage Sense is an automated disk-cleanup feature Microsoft first introduced in Windows 10 and has continued to refine ever since. It handles the tedious housekeeping for you — deleting temporary files, emptying the Recycle Bin, removing unused files and applications, and managing cloud content through OneDrive.

How to do it

Navigate to Settings > System > Storage and switch on Storage Sense. You can configure how often it runs and how aggressively it clears out temporary files and downloads. Set it once, and it quietly keeps your drive breathing freely from then on.

Aim for headroom

As a rule of thumb, try to keep a comfortable chunk of your drive free rather than running it right to the brim. A drive that's perpetually full will feel sluggish no matter what else you optimise — giving the system room to work is one of the cheapest performance wins there is.

The Free-Fix Checklist, Side by Side

So how do these fixes stack up against each other? Here's how I'd rank them on effort versus impact, so you can decide where to start. If you only have ten minutes, work top-down.

FixEffortPerformance ImpactBest For
Disable startup appsVery lowVery highSlow boot & sluggish login
Turn off visual effectsVery lowHigh (older hardware)Laggy menus & animations
Best performance power modeVery lowModerate–highPlugged-in use
Stop background appsLowModerateLots of installed apps
Update Windows & driversLowVariable (fixes bugs)Post-update slowdowns
Storage Sense cleanupLowHigh (if drive is full)Nearly full drives
Disable startup apps — impact
Very high
Free up storage — impact (full drive)
High
Disable visual effects — impact (old hardware)
High
Best performance power mode — impact
Moderate–high
Stop background apps — impact
Moderate
Update Windows & drivers — impact
Variable

Why try the free fixes first

  • They cost absolutely nothing.
  • Most take only a minute or two to apply.
  • Startup and storage fixes often deliver dramatic gains.
  • All built into Windows — no third-party downloads needed.
  • Reversible if you change your mind.
  • Microsoft itself endorses several of them.

Their limits

  • Won't add raw capacity if your RAM is genuinely maxed out.
  • Best performance mode drains battery and adds heat.
  • A mechanical hard drive remains a fundamental bottleneck.
  • Can't fully overcome ageing, underpowered hardware.
  • Background-app tweaks may mute some notifications.

When an SSD or RAM Upgrade Is Actually Worth It

Here's where I have to be honest with you. The free fixes above will rescue most slow laptops — but not all of them. There are two scenarios where the software is doing its best and the hardware is simply holding you back. In those cases, a small, targeted upgrade can be transformative, and frankly it's still far cheaper than a whole new machine.

Scenario one: you're still running a mechanical hard drive

If your laptop boots from a traditional spinning hard drive (an HDD) rather than a solid-state drive (SSD), no amount of software tuning will fully fix the sluggishness. The mechanical drive is the bottleneck — every boot, app launch and file open is throttled by how fast a physical platter can spin and a read head can move. Swapping to an SSD is, without exaggeration, the single most dramatic upgrade you can make to an older laptop. Boot times collapse, apps snap open, and the whole machine feels reborn. If you've applied every free fix and the disk light is still pinned solid whilst you wait, this is your answer.

Scenario two: your RAM is genuinely maxed out

Because Windows 11 uses more memory at idle than older versions thanks to its background services and telemetry, machines with very little RAM run out of headroom quickly. If you open Task Manager and find your memory sitting near capacity even after disabling startup and background apps — with the system constantly paging to disk — then adding more RAM is the fix. More memory gives Windows and your apps room to breathe, which stops that constant, performance-killing shuffle between RAM and storage.

SSD upgrade — the big one

Best for any laptop still running a mechanical hard drive. The most transformative single change you can make to an ageing machine.

RAM upgrade — the headroom fix

Best when memory sits near capacity even after the free fixes, and the system keeps paging to disk under everyday use.

Check upgradeability first

Some thin laptops have soldered RAM or storage that can't be changed. Check your model's serviceability before buying components.

The right order of operations: free fixes first → SSD if you're still on a hard drive → RAM if memory is genuinely maxed. Do them in that sequence and you'll never spend money you didn't need to.

If you do decide an upgrade is justified, brands like Samsung, Crucial, Kingston and Western Digital are well-established names in both SSDs and laptop memory, and compatible parts for most mainstream laptops are easy to find.

Check the latest price and any current bundles on Amazon.

Our Verdict Rating

9.2 /10
Ease of fixes
9.5
Cost
10
Speed gains
8.8
Reversibility
9.2

As a strategy for reviving a slow Windows 11 laptop, this free-first approach is about as close to a no-brainer as it gets. The only thing keeping it from a perfect score is that some genuinely ageing machines will still need a modest hardware nudge to feel truly fast — but even then, you'll spend a fraction of the cost of a new laptop.

Who Each Approach Suits

The free-fix fan

If your laptop is only a few years old and feels bogged down, the software fixes alone will almost certainly sort you out. Start with startup apps and storage.

The HDD upgrader

Still on a mechanical hard drive? Do the free fixes, then put an SSD in. It's the most cost-effective speed boost in computing.

The multitasker

If you keep dozens of tabs and apps open and memory is constantly maxed, a RAM top-up gives Windows 11 the breathing room it craves.

Frequently Asked Questions

Will disabling startup apps stop those programs working?
No. Disabling an app's startup entry only stops it launching automatically when you log in. You can still open it normally whenever you like — it simply won't run in the background until you do.
Is it safe to turn off all visual effects?
Yes — "Adjust for best performance" is an official Windows option that Microsoft provides precisely for slower devices. If you miss certain effects, you can re-enable individual ones whilst leaving the heavier animations off.
Should I leave Best performance power mode on all the time?
Only when plugged in. It increases power consumption, drains the battery faster and can make the laptop run warmer, so it's best used situationally rather than left on permanently while running on battery.
My laptop got slower after a big Windows update — what now?
Some slowdowns are caused by known bugs that later updates fix, and certain 24H2 issues triggered performance safeguards on some systems. Check Windows Update for the latest cumulative update, and grab the newest GPU and chipset drivers from your manufacturer's support site.
Do I really need an SSD, or will the free fixes be enough?
If you're already on an SSD, the free fixes are usually plenty. If you're still booting from a mechanical hard drive, the free fixes will help but the drive remains a fundamental bottleneck — an SSD is the upgrade that truly transforms an older laptop.
How does Storage Sense help with speed?
A nearly full drive can cause freezing, failed updates and general sluggishness. Storage Sense automatically clears temporary files, empties the Recycle Bin and manages cloud content, keeping enough free space for the system to work smoothly.

The Bottom Line

A slow Windows 11 laptop is rarely a lost cause. The slowdown almost always comes from software bloat, background processes and storage bottlenecks rather than an inevitable need for new hardware — which means the fixes that matter most are free and built right into Windows.

Start by disabling startup apps, then trim visual effects, switch to Best performance when plugged in, rein in background apps, keep Windows and drivers updated, and let Storage Sense keep your drive clear. Work through that list and most laptops will feel dramatically faster without you spending a penny.

Only when you've exhausted those options should you consider hardware — an SSD if you're still on a mechanical hard drive, or more RAM if memory is genuinely maxed out. Both are inexpensive, both are transformative in the right circumstances, and both beat the cost of a new laptop. Free first, hardware last: that's how you get the most out of the machine you already own.