The laptop slows down and works slowly - what to do in 2026?

Has your laptop become slower in opening programs, “thinks” when switching between browser tabs, and you can completely forget about launching modern games or video editors? Don't rush to take it to a service center or buy a new one. In 90% of cases, brakes are not associated with a breakdown, but with accumulated problems in the system that can be solved independently - even without special skills.

We analyzed hundreds of cases from the practice of masters and compiled step by step guide for diagnosing and speeding up laptops Windows 10/11 And macOS. There are no universal “magic buttons” here, but there are concrete actions, which really work - from cleaning the system of debris to upgrading hardware. Let's start with the simplest and freest one, and end with solutions for “difficult” cases.

1. Diagnostics: why did the laptop start to slow down?

Before you fix anything, you need to understand what exactly is slowing down. A laptop can lag for a dozen reasons - from overheating to viruses. Here's how to quickly determine the root of the problem:

• 🔍 Check CPU and RAM usage: open Task Manager (Ctrl+Shift+Esc) and see which process is “eating” resources. If Windows Explorer or svchost.exe load the system by 80%+ - system errors or updates are to blame.
• 🌡️ CPU temperature: use HWMonitor or Core Temp. If the temperature is higher 85°C when idle, you need to clean it from dust or replace the thermal paste.
• 💾 Hard drive status: in Command line (Win+R → cmd) enter wmic diskdrive get status. If the status is not OK — the disk dies and slows down the system.
• 🦠 Viruses and malware: even if the antivirus doesn’t find anything, check it Malwarebytes or Kaspersky Virus Removal Tool — they catch what standard scanners miss.

Pay special attention sudden freezes after Windows updates. For example, after updating KB5034441 (January 2026) many users experienced freezes due to conflicts with drivers Intel Smart Sound Technology. In such cases, rolling back the update or manually installing drivers from the manufacturer's website helps.

⚠️ Attention: If the laptop slows down only when running on battery, check the power plan settings. B Control Panel → Power Options select mode High performance — by default, Windows limits processor power to save battery.

2. System cleaning: remove junk and unnecessary programs

Over time, Windows and macOS become clogged with temporary files, cache, and programs you haven't used for a long time. It's like junk in a closet - it doesn't break the house, but it gets in the way of life. Here's how safely clean the system:

For Windows:

• 🧹 Disk Cleanup: enter in search Disk Cleanup, select the system drive (C:) and delete temporary files, trash, old updates.
• 🗑️ Uninstalling programs: in Settings → Applications Sort programs by size and remove unnecessary ones. Especially the “heavy” ones - Adobe Creative Cloud, Microsoft Office (if you don't use it), games from Epic Games or Steam.
• 🔧 Cleaning the registry: use CCleaner (section only Register!) or Wise Registry Cleaner. Don't clean the registry manually - it's dangerous!

For macOS:

• 📁 Clearing cache: open Finder → Go → Go to Folder and enter ~/Library/Caches. Delete the contents of the folders (except com.apple).
• 🖼️ Removing duplicates: use Gemini 2 or Duplicate File Finder — they will find duplicate files taking up space.
• 🚀 Storage optimization: in Settings → General → Storage enable the option Optimize storage - macOS will automatically delete unnecessary files.

After cleaning, reboot your laptop. If the brakes remain, proceed to the next step.

3. Startup: why does the laptop slow down when turned on?

If laptop takes a long time to load (more than 1-2 minutes) or freezes immediately after logging in, the problem is in autoload. Programs that you don’t need at startup are often written there, but they load the processor and RAM.

How to clean startup in Windows:

1. Click Ctrl+Shift+Esc → go to the tab Autoload.
2. Disable everything except antivirus and video card drivers (NVIDIA/AMD) and critical utilities (for example, Logitech Options for mouse).
3. Pay attention to programs marked High Impact on Loading — they need to be disabled first.

For macOS:

1. Open System Settings → Users and Groups → Login Items.
2. Remove unnecessary elements (especially Adobe Creative Cloud, Microsoft AutoUpdate, Google Drive).
3. Check the folder /Library/LaunchAgents/ — startup files from remote programs may be hidden there.

After clearing startup, the laptop should boot into 2-3 times faster. If not, the problem is deeper.

4. Viruses and malware: hidden threats that slow down your laptop

Even if you have an antivirus installed, this does not guarantee protection. Modern viruses and malware (adware, miners, spyware) can bypass standard scanners. They can steal CPU resources for cryptocurrency mining or show ads in the background, which causes the laptop to slow down.

How to check and remove:

• 🛡️ Malwarebytes Scanner: free version finds what they're missing Avast or Kaspersky. Download from the official website, update the databases and run Full scan.
• 🔍 AdwCleaner: utility from Malwarebytes, specializes in removing adware and unnecessary browser extensions.
• 🖥️ Manual check: open Task Manager and sort the processes by CPU load. If you see unknown processes with high consumption (for example, msiexec.exe or conhost.exe), Google their name - it could be malware.

Malware that masquerades as system processes is especially dangerous. For example, a virus WannaMine exploits a vulnerability EternalBlue (same as in attack Petya) and loads the processor 100%, mining cryptocurrency. If the antivirus does not help - reinstall Windows with full disk formatting.

⚠️ Attention: Never download cracks, hacked programs or games from torrents. Even if the file is clean, it can download a virus later through an update. For example, the popular key KMSAuto Net often comes bundled with miners.

5. Hardware problems: when the hardware is to blame

If software methods do not help, the problem may be hardware. Here are the most common “iron” causes of brakes:

Problem	Symptoms	Solution
CPU overheating	The laptop turns off, slows down under load, the cooler is noisy	Cleaning dust, replacing thermal paste, checking the cooler
Faulty HDD/SSD	Long loading times, freezing when opening files, reading errors	Check SMART through CrystalDiskInfo, disk replacement
Lack of RAM	Lags when working with the browser/games, constant use of the swap file	Adding a RAM stick or replacing it with a more capacious one
Weak processor/video card	Lags in games, slow video processing, low FPS	Upgrade (for some laptops) or buy a new device

How to check hardware:

• 🔥 Overheating test: use AIDA64 (tab Sensors) or HWMonitor. If the processor temperature is higher 90°C under load - needs cleaning.
• 💿 Disk check: in Command line execute chkdsk C: /f /r (for Windows) or diskutil verifyVolume / (for macOS).
• 🖥️ RAM test: On Windows, enter mdsched.exe in the search and follow the instructions. On macOS use MemTest86 (you need a flash drive).

If tests show errors - don't delay repairs. For example, Bad sectors on the HDD can lead to data loss beyond recovery. And overheating the processor reduces its service life by 2-3 times.

How to clean your laptop from dust yourself?

1. Turn off the laptop and remove the battery (if removable).

2. Unscrew the bottom cover (you need a Phillips screwdriver).

3. Carefully blow off dust from the cooler and radiator with a can of compressed air (do not use a vacuum cleaner!).

4. Lubricate the fan with silicone grease (1 drop per axis).

5. Reassemble the laptop and check the temperature in HWMonitor.

⚠️ If you are not sure, it’s better to take it to the service!

6. Optimizing Windows and macOS: hidden settings for speeding up

Operating systems are set to "universal" mode by default, which is not suitable for everyone. After digging around a little in the settings, you can speed up your laptop by 20-30% without buying new hardware.

For Windows 10/11:

• ⚡ Turn off visual effects: Settings → System → Advanced system settings → Performance → Get better performance.
• 🖼️ Disable background apps: Settings → Privacy → Background apps → turn off everything except critical ones.
• 🔄 Set up a swap file: If RAM is less than 8 GB, increase page file to 1.5× of RAM capacity in Settings → System → About the system → Advanced settings → Performance → Advanced → Virtual memory.
• 🔒 Disable indexing: If you have an SSD, indexing only slows down the system. Enter in search Indexing Options → Edit → uncheck all drives.

For macOS:

• 🎨 Disable animation: in Terminal enter:

  defaults write NSGlobalDomain NSAutomaticWindowAnimationsEnabled -bool false

  Then restart your laptop.

• 📂 Clear Spotlight: System Preferences → Siri and Spotlight → Search Categories → disable unnecessary ones (for example, News, Sports events).
• 🔋 Reset SMC and NVRAM: This helps with weird brakes. Instructions for your macBook model are available on the website Apple.

These settings will not give such an increase as a hardware upgrade, but in total they can speed up a laptop by 15-25%, especially if he is older than 3-4 years.

7. Upgrade: when is it time to change hardware?

If all the previous methods did not help, your laptop may simply obsolete. Modern programs and games require more resources than 5-7 years ago. Here's when to think about upgrading:

• 🖥️ RAM less than 8 GB: for Windows 11 and macOS Ventura, the minimum is 8 GB, the optimum is 16 GB. If you have 4 GB, the laptop will slow down even in a browser with 10 tabs.
• 💾 HDD instead of SSD: replacing an old hard drive with an SSD (Samsung 870 EVO, Crucial MX500) will speed up the system boot into 5-10 times.
• 🎮 Weak video card: if you have integrated graphics (Intel UHD 620 or AMD Radeon Vega 3), modern games and video editors will lag.
• ⚙️ Processor older than 5 years: Intel Core i3/i5 6th generation (2015) or AMD Ryzen 2000 They are no longer drawn to new tasks.

What can be upgraded in a laptop:

Component	Can it be replaced?	Recommendations
Random access memory (RAM)	Yes (in 90% of laptops)	Add a stick or replace with 16 GB DDR4 3200 MHz
Hard drive (HDD/SSD)	Yes (in 99% of laptops)	Replace HDD with SSD NVMe (For example, WD Black SN770)
Processor (CPU)	Redeco (select models only)	Check compatibility on the manufacturer's website
Video card (GPU)	No (in 99% of laptops)	Only external video card via Thunderbolt (expensive)
Battery	Yes	If the laptop turns off at 20% charge, replace the battery

Before buying new hardware check compatibility on the laptop manufacturer's website or through Crucial System Scanner (for RAM/SSD). For example, in laptops Lenovo IdeaPad the proprietary SSD format is often used (M.2 2242), which is not suitable for most drives.

FAQ: Frequently asked questions about laptop brakes

❓ The laptop slows down only in games. What to do?

Most likely the problem is video card or overheating. Check:

1. GPU temperature in MSI Afterburner (should be below 85°C under load).
2. Video card drivers: update them from the official website (NVIDIA, AMD, Intel).
3. In-game graphics settings: lower resolution to 1280×720 and turn off shadows, reflections, smoothing.

If the laptop is older than 5 years, perhaps its video card simply cannot handle modern games. Check the game requirements on the website Can You Run It.

❓ After updating Windows, the laptop began to slow down. How to roll back?

In Windows 10/11 you can roll back the update:

1. Open Settings → Update & Security → Windows Update → View update history → Uninstall updates.
2. Find the latest update (usually with code KBxxxxxxx) and delete it.
3. Restart your laptop.

If rolling back doesn't help, try restore the system to the point before update: Control Panel → Recovery → Run System Restore.

❓ The laptop is slow on macOS after the update. What to do?

In macOS, slowdowns are often associated with incompatibility of old hardware with the new system. Try:

• 🔄 Reset NVRAM: Turn off your Mac, then turn it on and immediately press Command+Option+P+R for 20 seconds.
• 🗑️ Clear cache: in Terminal enter:

  sudo rm -rf /Library/Caches/*

  (Administrator password required).

• 🔙 Roll back to previous version: If the update was installed recently, you can restore the backup via Time Machine.

If the laptop is older than 2015, consider installing a light OS (For example, Linux Mint or ChromeOS Flex).

❓ How much does it cost to fix a slow laptop at a service center?

The cost depends on the problem:

• 🧹 Cleaning from dust: 1 500–3 000 ₽.
• 💾 Replacing HDD with SSD: 3,000–6,000 ₽ (including storage).
• 🖥️ Replacing thermal paste: 1 000–2 500 ₽.
• 🔧 Adding RAM: 2,000–5,000 ₽ (depending on the type of memory).
• 🦠 Removing viruses: 1,000–3,000 ₽ (if reinstalling the OS does not help).

Average bill for comprehensive service (cleaning + SSD + RAM) — 8 000–15 000 ₽. If the laptop is older than 5 years, it is sometimes cheaper to buy a new one.

❓ Which laptop should I buy if the old one is completely slow?

The choice depends on the tasks:

• 📝 For office/study: Lenovo ThinkPad E14 (from 50,000 ₽) or HP Pavilion 15 (from 45,000 ₽).
• 🎮 For games: ASUS TUF Gaming A15 (from 80,000 ₽) or MSI Katana 15 (from 75,000 ₽).
• 🎬 For video/graphics: Apple MacBook Pro M1 (from 120,000 ₽) or Dell XPS 15 (from 130,000 ₽).
• 💼 Budget option: Acer Aspire 5 (from 35,000 ₽) or Honor MagicBook 14 (from 40,000 ₽).

Please note amount of RAM (minimum 16 GB for multitasking) and drive type (SSD only!). Avoid laptops with eMMC memory — they are slow and cannot be upgraded.