Quick Answer
If your laptop is running slow, start by plugging it in and switching the power plan to High Performance — Battery Saver mode cuts CPU speed by up to 50%. Next, clean the laptop vents with compressed air to stop thermal throttling. Then disable startup programs in Task Manager, scan for malware, and update GPU and chipset drivers. For the single biggest speed jump, replace the HDD with an SSD. All 9 laptop-specific fixes are covered step by step below.
A laptop running slow is not the same problem as a slow desktop. Laptops face unique performance challenges that do not exist on tower PCs: the processor throttles itself to avoid overheating when dust blocks the vents, the battery saver mode deliberately cuts CPU speed to conserve charge, thin chassis leave almost no room for airflow, and many budget or mid-range laptops still ship with spinning hard drives that make even Windows 10 feel painfully sluggish.
The frustrating part is that these are all fixable. Whether your laptop is slow on battery, freezes after 10 minutes of use, takes forever to open Chrome, or has simply gotten progressively worse over the past year, this guide covers every likely cause. Each fix is specific to laptops — not generic advice copied from a desktop article — with exact steps for Windows 10 and Windows 11.
Our technicians at IT Cares diagnose slow laptops every week across Canada. The pattern is consistent: in roughly 80% of cases, the slowdown comes down to one or two root causes that can be fixed in under an hour without spending a dollar. The other 20% need hardware changes like an SSD or RAM upgrade, and we cover those too, including what is upgradeable on a typical laptop and what is not.
Table of Contents — 9 Laptop Slow Fix Methods
- Switch Power Plan to High Performance (or Balanced on battery)
- Clean Laptop Vents & Check for Thermal Throttling
- Disable Startup Programs (Task Manager > Startup)
- Upgrade RAM (Check Your Laptop’s Max Slots)
- Replace HDD with SSD
- Scan for Malware (Windows Security)
- Update or Reinstall Drivers (GPU and Chipset)
- Disable Background App Refresh
- Reset Windows 10/11 (Keep My Files)
Why Laptops Get Slow: The Causes Unique to Portables
Before applying fixes, it helps to understand why a laptop slows down differently from a desktop. Desktops have large cases with multiple fans and room for airflow. Laptops squeeze the same or greater computing power into a chassis often less than 2 cm thick, with a single small fan and heat pipe routing heat to a vent cut into the edge of the body.
Dust accumulates on that vent and on the heatsink fins over months of use. When airflow is restricted, the CPU and GPU temperatures climb past their rated safe limits — typically 85 to 100°C — and the processor automatically reduces its clock speed to generate less heat. This is called thermal throttling, and a heavily throttled laptop CPU can drop to 20–30% of its normal speed. The laptop feels impossibly slow yet nothing shows as obviously wrong in Task Manager.
The second unique laptop problem is power management. Windows applies different performance profiles depending on whether the laptop is plugged in or running on battery. The Battery Saver mode — which activates automatically when the battery drops below 20% by default — caps processor performance to extend run time. Even the standard Balanced profile on battery limits the CPU compared to how it runs when plugged in. If your laptop is fast when plugged in but sluggish on battery, this is almost certainly why.
The Two Most Common Laptop Slow Causes
In our experience, thermal throttling from clogged vents and battery saver mode capping CPU speed together account for roughly 60% of all "my laptop suddenly got slow" complaints. Before spending time on software fixes, always plug in your laptop first and check whether performance improves. If it does, you have found a large part of your problem before opening a single settings screen.
Switch Power Plan to High Performance (or Balanced When on Battery)
High ImpactThe Windows power plan directly controls how much of the processor's capability is available at any given moment. Battery Saver caps the CPU at a fraction of its rated speed. Even the default Balanced plan throttles the processor when it detects the laptop is unplugged. Switching to High Performance when plugged in removes all artificial limits and lets the CPU run at full speed.
- Plug your laptop into the charger before changing this setting — High Performance on battery will drain it very quickly.
- Press
Win + R, typepowercfg.cpl, and press Enter to open Power Options. - If High Performance is not listed, click Show additional plans to reveal it.
- Select High Performance for plugged-in use.
- For battery use, select Balanced — never Battery Saver unless you need maximum battery life more than performance.
- On Windows 11, go to Settings > System > Power & battery and set Power mode to Best performance when plugged in.
- Alternatively, click the battery icon in the system tray and drag the slider to Best Performance.
Clean Laptop Vents and Check for Thermal Throttling (Use HWMonitor)
High ImpactThermal throttling is the silent killer of laptop performance. When the CPU temperature climbs past roughly 85–90°C during sustained work, Intel and AMD processors automatically reduce their clock frequency to prevent damage. The effect is a laptop that starts sessions feeling normal but becomes progressively slower the longer it runs. The fix is cleaning the dust from the vents and heatsink.
- Download HWMonitor (free from cpuid.com) and run it while doing normal tasks for 10 minutes.
- Look at the CPU Temperature — Max column. Values above 85°C under light load, or above 95°C under any load, confirm thermal throttling.
- Shut down the laptop completely and unplug it.
- Use a can of compressed air to blast through every vent opening on the bottom and sides of the laptop for 5–10 seconds each. You should see dust ejected from the vents.
- For heavily clogged laptops (3+ years old), removing the bottom panel and clearing dust from the heatsink fins directly with compressed air is far more effective. If you are not comfortable doing this, a technician can clean it in 20 minutes.
- After cleaning, run HWMonitor again under the same load and compare temperatures. A drop of 10–25°C is typical after proper cleaning.
- Consider a laptop cooling pad for intensive tasks like video editing or gaming — they can reduce temperatures by a further 5–10°C.
Disable Startup Programs (Task Manager > Startup)
High ImpactEvery program that automatically launches when Windows starts consumes CPU and RAM during the boot sequence and continues running silently in the background. On a laptop with limited RAM — particularly 4 GB or 8 GB models — half a dozen startup programs can consume 1.5 to 2 GB of your available memory before you have opened a single browser tab. Disabling unnecessary startup programs is the fastest free fix for a slow boot and sluggish first-use experience.
- Right-click the taskbar and select Task Manager, or press
Ctrl + Shift + Esc. - Click More details if you see the compact view, then click the Startup tab (Windows 10) or Startup apps in the left panel (Windows 11).
- Sort by the Startup impact column. Focus on items marked High first.
- Right-click any program you do not need at login — Teams, Spotify, OneDrive, Discord, Steam, Adobe updaters, printer software — and select Disable.
- Essential items to leave enabled: Windows Security, your antivirus, audio drivers, and any program you genuinely use within the first 5 minutes of turning on your laptop.
- Restart your laptop and compare the boot time and how quickly you can start working.
Add or Upgrade RAM (Check Your Laptop's Max RAM and Available Slots)
High ImpactInsufficient RAM is a leading cause of laptop slowness in 2026. When Windows runs out of physical RAM, it begins using the hard drive as virtual memory (the paging file). On an HDD, this paging activity is extremely slow — disk access is 50–100 times slower than RAM. The result is a laptop that stutters, freezes for seconds at a time, and feels completely overwhelmed by normal workloads like having a few browser tabs open alongside an email client.
- Press
Ctrl + Shift + Escto open Task Manager and click the Performance tab, then Memory. If RAM usage is regularly above 80–85% during normal use, upgrading will make a dramatic difference. - Before purchasing RAM, check whether your laptop's RAM is upgradeable. Many thin-and-light laptops (especially those under 1.5 kg) have RAM soldered directly to the motherboard — it cannot be replaced. Check your model's specifications on the manufacturer website or use the free Crucial System Scanner (crucial.com) to scan your laptop and identify compatible upgrades.
- If your laptop has open SO-DIMM slots, check the maximum supported RAM in the manual or on the manufacturer's support page. Most consumer laptops from 2016 onward support 16 GB; many support 32 GB.
- For a laptop currently running 4 GB of DDR4 RAM, upgrading to 8 GB is the most cost-effective improvement (~$25–$40 CAD for a single 8 GB SO-DIMM).
- For laptops already at 8 GB that feel slow under multitasking or during video calls, upgrading to 16 GB is strongly recommended.
- Match the RAM speed (e.g., DDR4-3200) specified in your laptop’s documentation. Mismatched speeds work but the faster stick will run at the slower speed.
Laptop Still Running Slow After These Steps?
IT Cares offers remote laptop optimization across Canada — our certified technicians diagnose the exact bottleneck, clean malware, update drivers, and apply advanced performance fixes. Book a same-day session and get your laptop running at full speed today.
Replace HDD with SSD (Transformational for Old Laptops)
High ImpactIf your laptop still uses a traditional spinning hard drive, replacing it with an SSD is the single most impactful upgrade you can make — more than any software fix, and more than a RAM upgrade in most cases. A standard laptop HDD reads data at 80–120 MB/s. A SATA SSD reads at 500–550 MB/s. An NVMe SSD reaches 2,000–7,000 MB/s. In practical terms: Windows boots in 10–15 seconds instead of 60–90 seconds, apps launch instantly, and the constant stuttering caused by slow disk access disappears entirely.
- Determine whether your laptop uses a 2.5-inch SATA drive (most laptops before 2018) or an M.2 slot (most laptops from 2018 onward). Check the manufacturer's specifications page or search "[your laptop model] storage upgrade" to find confirmed compatible drive types.
- To confirm it is actually an HDD slowing you down: press
Ctrl + Shift + Esc, go to Performance > Disk. If disk usage reads near 100% during normal tasks like opening the Start menu, an HDD is your bottleneck. - For 2.5-inch SATA laptops, a 500 GB SATA SSD costs $50–$80 CAD and fits the existing drive bay.
- For M.2 slots, check whether the laptop requires SATA M.2 or NVMe M.2 — they are physically similar but not always interchangeable. NVMe provides the best performance.
- Clone your existing drive to the new SSD using free software like Macrium Reflect Free before swapping, so you keep Windows, all your files, and all settings without reinstalling anything.
- After installing the SSD, check the BIOS to confirm the new drive is recognized and set as the boot device.
Scan for Malware (Windows Security)
High ImpactMalware — including cryptomining software, adware, and browser hijackers — runs silently in the background and consumes CPU, RAM, and network bandwidth 24 hours a day. A laptop with a mining trojan will feel like it is always under heavy load regardless of what you are doing, the fan will run constantly, and battery life will be significantly shorter than normal. Windows Security (built into Windows 10 and 11) is capable of detecting and removing the vast majority of common malware without installing any additional software.
- Open Windows Security by searching for it in the Start menu, or go to Settings > Privacy & Security > Windows Security > Open Windows Security.
- Click Virus & threat protection, then Scan options.
- Select Full scan and click Scan now. This scans every file on the laptop and takes 20–60 minutes depending on drive size.
- After the Windows Security scan, download and run Malwarebytes Free (malwarebytes.com) as a second opinion scanner — it catches adware and PUPs that Windows Security sometimes misses.
- If either scan finds threats, follow the removal prompts, then restart and scan again to confirm the infection is fully removed.
- Check Task Manager after the clean scan: if a previously unexplained process was consuming high CPU or disk usage and is now gone, malware was your culprit.
Update or Reinstall Drivers (Especially GPU and Chipset)
Medium ImpactOutdated, corrupted, or mismatched drivers — particularly for the graphics card (GPU) and Intel or AMD chipset — are a common cause of laptop slowness that is frequently overlooked. An outdated GPU driver can cause visual stuttering, high CPU usage during video playback, and degraded performance in any graphics-accelerated application including Chrome and Edge. Chipset drivers affect how efficiently the CPU communicates with RAM, storage, and USB devices. Windows Update installs generic drivers, but manufacturer-provided drivers are almost always more current and optimized for your specific laptop model.
- Go to your laptop manufacturer's support website (Dell, HP, Lenovo, ASUS, Acer, etc.) and enter your laptop model number to access the drivers download page.
- Download and install the latest Chipset driver from Intel (intel.com/content/www/us/en/download-center/) or AMD (amd.com/en/support) based on your processor brand.
- For the GPU: if your laptop has an NVIDIA GPU, download the latest driver from nvidia.com/drivers. For AMD Radeon, use amd.com/en/support. For Intel integrated graphics, use the Intel Driver & Support Assistant.
- After downloading, run the installer, select Clean installation if offered, and restart when prompted.
- Also check Device Manager (
Win + X > Device Manager) for any devices showing a yellow warning triangle, which indicates a driver error that needs to be resolved. - After updating, open Task Manager and monitor GPU usage during video playback. If GPU usage rises to 30–60% during a 1080p YouTube video (instead of 0%), the GPU driver is now properly active and offloading work from the CPU.
Disable Background App Refresh (Settings > Privacy > Background Apps)
Medium ImpactWindows allows installed apps — including many you never open — to run silently in the background to receive updates, refresh notifications, and download data. On a laptop with limited RAM or a slow HDD, this constant background activity creates resource contention that makes foreground tasks feel sluggish and drains battery faster. Disabling background refresh for apps you do not actively use is a straightforward way to reclaim CPU cycles and reduce disk activity.
- Windows 10: Go to Settings > Privacy > Background apps. You will see a toggle to let apps run in the background at the top — you can turn this off for all apps at once, or scroll down and disable it selectively for individual apps.
- Windows 11: Microsoft removed the bulk toggle. Go to Settings > Apps > Installed apps, click the three-dot menu next to each app, select Advanced options, and set Background apps permissions to Never for apps you want to restrict.
- Priority targets to disable: Microsoft Store, Xbox, Maps, Weather, News, Mail, Calendar (if you use a separate email client), and any OEM pre-installed apps from your laptop manufacturer.
- Leave enabled: OneDrive (if you use it for sync), your security software, and any communication apps you need to receive real-time notifications from.
- After making changes, open Task Manager and check the Processes tab — the number of active background processes should decrease after a restart.
Reset Windows 10/11 (Keep My Files Option)
High ImpactIf you have applied methods 1 through 8 and your laptop is still slow, a Windows reset using the Keep my files option is the most reliable remaining software fix. This reinstalls Windows from scratch while preserving your personal files (Documents, Desktop, Pictures, Videos) but removes all installed applications and clears accumulated startup entries, registry clutter, and driver conflicts that can build up over years of use. It is the recommended step before concluding that a hardware upgrade is required.
- Back up your important files first to an external drive or cloud storage, even though Keep my files is designed to preserve them. A backup eliminates any risk.
- Go to Settings > System > Recovery (Windows 11) or Settings > Update & Security > Recovery (Windows 10).
- Click Reset this PC (Windows 11) or Get started under Reset this PC (Windows 10).
- Select Keep my files when prompted. Do NOT select Remove everything unless you intend to perform a full reinstall.
- Choose Cloud download if you have a stable internet connection and want the freshest Windows installation files, or Local reinstall to use existing files on the drive.
- The reset process takes 45 to 90 minutes. The laptop will restart several times. Do not interrupt it.
- After the reset completes, reinstall only the applications you actively use. Avoid reinstalling software that was contributing to the slowness.
What If Your Laptop Is Still Slow After All 9 Fixes?
If you have completed all nine methods and your laptop is still running slow, the issue is almost certainly hardware. There are three scenarios to evaluate:
Scenario 1 — Disk is the bottleneck: Open Task Manager, click Performance, then Disk. If disk usage stays above 80–90% during normal tasks after a fresh Windows reset, the hard drive is the limiting factor and needs to be replaced with an SSD. There is no software fix for a slow HDD. This is by far the most common hardware bottleneck on laptops sold before 2021.
Scenario 2 — RAM is the bottleneck: If Task Manager shows memory usage consistently above 85% and you have 4 or 8 GB installed, a RAM upgrade will make a significant difference — provided your laptop's RAM is not soldered in place. Check the Crucial System Scanner to confirm whether your specific model supports upgrades.
Scenario 3 — The processor is simply too old: A dual-core processor from 2013–2016 running Windows 11 with modern browser workloads will be slow regardless of other optimizations. In this case, the cost of RAM and SSD upgrades may approach the cost of a used replacement laptop with a significantly better processor. A technician can help you evaluate whether the investment is worthwhile given the laptop's overall condition and market value.
Recommended Sequence for Fastest Results
For the fastest improvement with the least effort, apply fixes in this order: Method 1 (power plan) → Method 3 (startup programs) → Method 2 (clean vents) → Method 6 (malware scan) → Method 7 (drivers). These five steps are free, take under one hour, and resolve the majority of slow laptop cases our technicians encounter. If the laptop is still slow afterward, proceed to hardware evaluation with Methods 4 and 5.
Laptop-Specific Windows Settings That Affect Performance
Beyond the main fixes, several Windows settings specifically impact laptop performance in ways that desktop users never encounter. Reviewing these takes less than 10 minutes and can provide meaningful improvements on battery-powered use cases.
Turn Off Adaptive Brightness
Some laptops have an ambient light sensor that continuously adjusts screen brightness. While this does not directly slow the CPU, it requires the sensor driver to run constantly and can occasionally cause unusual CPU spikes. Go to Settings > System > Display and disable Change brightness automatically when lighting changes if present.
Disable Superfetch / SysMain on HDD Laptops
The SysMain service (formerly Superfetch) preloads frequently used programs into RAM to speed up launches. On an SSD, it is harmless. On an HDD with limited RAM, it can actually cause constant high disk usage that makes the laptop feel slower. Press Win + R, type services.msc, find SysMain, double-click it, set Startup type to Disabled, and click Stop to disable it immediately. Restart and check whether disk usage in Task Manager drops.
Set a Specific Visual Effects Profile
Laptop GPUs, especially integrated Intel or AMD graphics, benefit from reducing Windows visual effects. Press Win + R, type sysdm.cpl, click the Advanced tab, then Settings under Performance. Select Adjust for best performance to disable all animations, or manually keep only Smooth edges of screen fonts and Show thumbnails instead of icons for a good balance of looks and speed.
Check for Windows Update Completing in Background
Windows Update often downloads and installs updates while you work, consuming significant bandwidth, CPU, and disk resources without obvious indication. Go to Settings > Windows Update and check whether any updates are in progress or pending restart. If updates are downloading, allow them to complete and restart, then check performance again — post-update slowness is temporary and one of the most common false alarms we encounter.
Frequently Asked Questions About Slow Laptops
Need Professional Help With Your Slow Laptop?
IT Cares offers same-day remote laptop repair across Canada. Our certified technicians handle everything from thermal paste replacement and vent cleaning to SSD upgrades, driver fixes, and full Windows resets — with over 5,000 satisfied clients since 2014.