Has your laptop started to open programs slowly, hesitate when switching between tabs, or even freeze for a few seconds? This is a common problem faced by users of both old and new devices. The reasons for the brakes may lie in system load, outdated hardware, viruses or incorrect settings Windows/macOS/Linux.

In this article we will look at 7 main reasons for laptop slowdown and we will give step-by-step instructions for eliminating them - from basic actions (cleaning the disk, disabling startup) to radical measures (replacing the SSD, reinstalling the OS). All recommendations are relevant for devices Asus, Lenovo, HP, Acer, Dell and other brands, regardless of model.

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

Before starting “treatment”, you need to identify source of the problem. Brakes can manifest themselves in different ways:

  • 🐢 Long system loading (more than 1–2 minutes).
  • 🖥️ Freezes when opening a browser or office programs.
  • 🎮 Lags in games or when watching videos (low FPS, jerking).
  • 🔊 Cooler noise and case overheating.

Main culprits:

Reason Signs Verification method
Lack of random access memory (RAM) Slowdown when working with multiple programs Open Task Manager → tab Memory
Processor overload (CPU) The laptop is heating up, the fan is running at maximum Task Manager → tab CPU
Full hard drive (HDD/SSD) Slow copying of files, freezing when saving This computer → right click on the disk → Properties
Viruses or malware Advertising in the browser, spontaneous opening of windows Antivirus scan (Kaspersky, Dr.Web, Windows Defender)

If the laptop is slow only in games, the problem is rather video card or drivers. For office tasks, the culprit is usually RAM or background processes.

📊 How often do you clean your laptop from dust?
  • Once every six months
  • Once a year
  • Never
  • Only when it starts to warm up

2. System cleaning: remove junk and unnecessary programs

Over time, the laptop accumulates cache, temporary files, remnants of deleted programs. This takes up disk space and slows things down. Let's start with the basic steps:

Step 1: Disk cleanup using built-in tools

  • 🧹 For Windows: open This computer → right click on disk C: → Properties → Disk Cleanup. Check the boxes Temporary files, Cart, Update log files.
  • 🗑️ For macOS: Finder → Programs → Utilities → Disk Utility → select the drive and click Clear.

Step 2. Remove unnecessary programs

Many applications run in the background, consuming resources. To remove them:

  • 📦 B Windows: Options → Applications → Applications and features. Sort by installation date and remove unused ones.
  • 🍎 B macOS: drag the program from the folder Programs in Cart or use AppCleaner.

☑️ Checklist for cleaning your laptop

Done: 0 / 4

Step 3: Clean the registry (Windows only)

The registry is the “brain” of the system where settings are stored. Over time, it becomes clogged with errors. To clean, use CCleaner (free version) or Wise Registry Cleaner:

  1. Download the program from the official website.
  2. Run a registry scan.
  3. Save a backup (File → Save backup).
  4. Correct any errors found.
💡

Before cleaning the registry, create a system restore point: Control panel → Recovery → Setting up System Restore → Create.

3. Optimization of startup and background processes

One of the main reasons for brakes is startup programs. They run with the system and consume RAM/CPU. How to disable them:

For Windows 10/11:

  1. Click Ctrl + Shift + Esc → open Task Manager.
  2. Go to the tab Autoload.
  3. Sort programs by column Impact on loading.
  4. Disable unnecessary ones (right button → Disable).

For macOS:

  1. Open System Settings → Users and groups.
  2. Select your account → tab Login objects.
  3. Remove unnecessary programs from the list.

Background processes also “eat up” resources. To check them:

  • 🔍 B Windows: Task Manager → tab Details. Look for processes with high CPU/RAM consumption (for example, svchost.exe, Runtime Broker).
  • 🍏 B macOS: System monitoring (in Utilities) → tabs CPU And Memory.
⚠️ Attention: Do not disable system processes (for example, explorer.exe on Windows or kernel_task on macOS) - this may cause the system to crash.

4. Check for viruses and malware

Viruses, mining bots and spyware can steal resources laptop, causing it to slow down. Even if you have an antivirus installed, it does not always detect all threats.

How to check your laptop for viruses:

  1. Scanning with built-in antivirus:
    • 🛡️ B Windows: Options → Update and Security → Windows Security → Protection against viruses and threats → Quick check.
    • 🍏 B macOS: use XProtect (built-in protection) or Malwarebytes.
  2. Checking with third party utilities:
    • Kaspersky Virus Removal Tool (free scanner).
    • Dr.Web CureIt! (does not require installation).
    • AdwCleaner (to remove adware).

Signs of infection:

  • 📈 Inexplicable increase in CPU load (even when the laptop is idle).
  • 🌐 Browser redirection to suspicious sites.
  • 💰 The appearance of advertising in places where there was none before.
⚠️ Attention: If the antivirus detects Trojan.Miner or CoinMiner, your laptop is used for cryptocurrency mining. Immediately remove the threat and change passwords for important accounts.

5. Hardware problems: overheating, dust, iron wear

If software methods do not help, the reason for the brakes may lie in hardware:

1. Overheating

Dust in the cooling system leads to throttling (automatically reducing the processor frequency), which causes the laptop to slow down. How to check the temperature:

  • 🌡️ B Windows: use HWMonitor or Core Temp.
  • 🍎 B macOS: iStat Menus or TG Pro.

Normal temperatures:

  • 🖥️ Processor (CPU): up to 70–80°C under load, 40–50°C in idle time.
  • 🎮 Video card (GPU): up to 85°C in games.

What to do if your laptop overheats:

  • 🧹 Clean the ventilation grilles and cooler from dust (use a can of compressed air).
  • 🔄 Replace thermal paste (if temperature exceeds 90°C).
  • 🪑 Use a cooling pad (especially for gaming laptops MSI, ASUS ROG).

2. Hard disk wear (HDD)

If you have HDD (not SSD), over time it begins to “slow down” due to fragmentation and wear. You can check disk health using:

  • 💾 CrystalDiskInfo (shows status Okay/Anxiety/Bad).
  • 🖥️ B macOS: Disk Utility → select drive → Information.
⚠️ Attention: If CrystalDiskInfo shows status Pre-failure or Bad, urgently transfer the data to another medium - the disk may fail at any moment.
How to check disk speed?

Open CrystalDiskMark and run the sequential read/write test. If the HDD speed is lower 80 MB/s, and SSD is lower 300 MB/s, the disk is not working efficiently.

6. Hardware upgrade: what can be improved in a laptop?

If software methods don't help, consider hardware update. Most laptops allow you to replace or add:

Component How does it affect speed? Upgrade cost (2026) Difficulty of replacement
Random access memory (RAM) Speeds up multitasking (working with tabs, programs) From RUB 2,000 (8 GB DDR4) ⭐⭐ (simple)
Hard drive → SSD Speeds up system and program loading by 3–5 times From 3,500 ₽ (256 GB) ⭐⭐ (simple)
Processor (CPU) Improves gaming and rendering performance From 10,000 ₽ (rarely possible for laptops) ⭐⭐⭐⭐ (difficult)
Video card (GPU) Improves gaming and graphics performance From 15,000 ₽ (not possible for most laptops) ⭐⭐⭐⭐⭐ (very difficult)

How to choose RAM:

  • 🔍 Check the maximum amount of RAM for your model on the manufacturer’s website.
  • 🔄 Buy a bar with the same frequency as the one installed (for example, DDR4 2400 MHz).
  • 🛒 Popular brands: Corsair, Kingston, Crucial.

How to replace HDD with SSD:

  1. Download Macrium Reflect or Clonezilla to clone the system.
  2. Connect the SSD via USB adapter and copy data from HDD.
  3. Replace the drive in your laptop (usually requires a screwdriver and a plastic spatula).
  4. Install the SSD in place of the HDD and boot from it.
💡

Replacing the HDD with an SSD is the most effective upgrade to speed up your laptop. The system will boot in 10–15 seconds, and programs will open instantly.

7. Reinstall Windows or reset to factory settings

If the laptop slows down even after all the manipulations, the last resort is clean OS installation. This will remove all programs, viruses and settings, returning the system to its factory state.

Reset Windows 10/11 without losing files:

  1. Open Options → Update and Security → Recovery.
  2. Click Start under the item Restore your computer to its original state.
  3. Select Save my files (will remove programs, but leave documents).
  4. Follow the instructions (takes about 30-60 minutes).

Clean Windows installation:

  1. Download Media Creation Tool from the site Microsoft and create a bootable USB flash drive.
  2. Boot from the flash drive (click F2, F12 or Del when turned on).
  3. Select Custom installation and format the disk C:.
  4. Install Windows and restore your data from backup.

For macOS:

  1. Reboot your laptop and hold Command + R (recovery mode).
  2. Select Reinstall macOS.
  3. Follow the instructions (Apple ID required).
⚠️ Attention: Before reinstalling the OS necessarily save important files to an external drive or to the cloud (Google Drive, Yandex Disk).

FAQ: Frequently asked questions about laptop brakes

🔹 Why does my laptop slow down after updating Windows?

Updates sometimes contain errors or conflict with drivers. Try:

  1. Roll back update: Options → Update and Security → View update history → Uninstall updates.
  2. Update drivers (especially for the video card and chipset).
  3. Wait 1-2 days - Microsoft frequently releases patches to fix bugs.
🔹 The laptop slows down in games, but works fine in regular programs. What's the matter?

Most likely the problem is:

  • 🎮 Video card: Check your drivers (update via GeForce Experience or AMD Adrenalin).
  • 🔥 Overheating: use MSI Afterburnerto track GPU temperature.
  • ⚙️ Game settings: Lower the resolution or disable resource-intensive effects (for example, Ray Tracing).
🔹 Is it possible to speed up a laptop without replacing hardware?

Yes, try:

  • 🧹 Clean the system of debris (see. section 2).
  • 🚫Disable visual effects: Options → Accessibility → Transparency effects (disable).
  • 🔄 Use ReadyBoost (for HDD): connect the USB flash drive and enable the function in Disk properties.
🔹 The laptop is slow on Linux. What to do?

B Linux brakes are often associated with:

  • 🐧 Drivers: Install proprietary drivers for your video card (sudo ubuntu-drivers autoinstall).
  • 🖥️ Desk: replace GNOME on XFCE or LXQt (lighter).
  • 🗑️ Swap file: increase its size (sudo fallocate -l 4G /swapfile).
🔹 How much does it cost to repair a laptop if it slows down?

Prices depend on the problem:

  • 🧹Dust removal: 1 000–2 500 ₽.
  • 🔄 Replacing thermal paste: 1 500–3 000 ₽.
  • 💾 Replacing HDD with SSD: 3 500–6 000 ₽ (including storage).
  • 🔧 Diagnostics + OS reinstallation: 2 000–4 000 ₽.

If the laptop is older than 5 years, it is sometimes cheaper to buy a new one.