The laptop slows down: what to do to get it back up to speed?

Have you noticed that your laptop has started to “think” longer than usual? Applications take a minute to open, video lags, and the cursor freezes in place? Braking is one of the most common problems that users encounter 1-3 years after purchase. But do not rush to take the device for repair: in 80% of cases, the cause can be eliminated on your own in 10–30 minutes.

In this article we will analyze system and hardware reasons braking, from simple (overheating) to complex (hard drive wear). Let's give step by step instructions for Windows 10/11, macOS And Linux, and we’ll also tell you when it’s really time to turn to specialists. All tips are tested on laptops Lenovo ThinkPad, HP Pavilion, Asus ROG And MacBook Pro — work regardless of brand.

1. Diagnostics: why is the laptop slow?

Before cleaning your system or buying a new SSD, determine source of the problem. Braking can be caused by:

• 🔥 Overheating — dust in the cooler or dried thermal paste reduces performance by 30–50%.
• 🖥️ RAM load - browsers (especially Chrome) and background processes “eat up” memory.
• 💾 Slow drive — HDD works 5-10 times slower than SSD, and fragmented files aggravate the problem.
• 🦠 Viruses or miners — hidden processes load the processor up to 100%.
• 🔄 Outdated OS — lack of driver and system updates leads to conflicts.

How to understand what exactly is slowing down? Open Task Manager (Ctrl+Shift+Esc in Windows, Activity Monitor in macOS). Please note:

• 📈 CPU load - if it is constantly 80–100%, the problem is in the processes or cooling.
• 🧠 RAM usage — over 90%? Close unnecessary programs or add more memory.
• 💿 Disk activity — 100% load on the HDD indicates its wear.

Critical point: if the laptop slows down even in the BIOS (when booting), the problem is definitely a hardware one - the drive, RAM or motherboard is faulty.

2. Overheating: how to check and fix

Overheating is the most common cause sudden brakes, especially for gaming laptops (MSI, Acer Predator) and ultrabooks (Dell XPS, MacBook Air). At temperatures above 85°C the processor throttling (reduces frequency) to avoid damage.

How to check the temperature:

1. Download HWMonitor (Windows) or iStat Menus (macOS).
2. Run a stress test in Prime95 or Cinebench.
3. Follow the indicators:
   • 🔥 CPU: normal up to 70–75°C under load, maximum – 90°C.
   • 🖥️ Video card: up to 80°C for office tasks, up to 95°C for games.

If the temperature is above normal:

⚠️ Attention: Do not use a vacuum cleaner to clean your laptop - static electricity can damage components. Better buy a can of compressed air (DataVac or analogues).

Symptom	Probable Cause	Solution
Laptop shuts down under load	Critical overheating (over 100°C)	Clean the cooling system immediately
The fan is constantly running at maximum	Dust in the radiator or dried thermal paste	Disassemble the laptop, clean it, replace the paste
Brakes appear after 10–15 minutes of operation	Throttling due to insufficient cooling	Disable turbo mode in BIOS or reduce voltage (undervolting)

3. Optimizing RAM: closing memory “eaters”

If you have 4–8 GB of RAM, even Windows 11 may slow down due to lack of memory. Browsers (Chrome, Edge) and background processes (OneDrive, Antivirus) “eat up” up to 3–4 GB in the background.

How to free up RAM:

1. Open Task Manager (Ctrl+Shift+Esc) → tab Memory.
2. Sort processes by amount of memory used.
3. Close unnecessary things:
   • 🌐 Browsers: one tab Chrome with YouTube can occupy 500 MB–1 GB.
   • 📁 OneDrive/Google Drive — synchronization loads the system.
   • 🛡️ Antiviruses (Kaspersky, Avast) - disable auto scanning.

For Windows:

1. Нажмите Win + R, введите msconfig.
2. Перейдите на вкладку Автозагрузка → отключите ненужные программы.
3. В Параметры системы → Дополнительно настройте виртуальную память (файл подкачки) на SSD.

For macOS:

• 🍎 Open Activity Monitor → Memory.
• 🔄 Click Memory Pressure — if the graph is red, there is a critical shortage of memory.
• 🗑️ Remove unnecessary programs from Login Items (in System settings → Users and groups).

4. Replacing HDD with SSD: the most effective upgrade

If your laptop is older than 5 years and runs on an HDD, replacing it with an SSD will speed it up 3-10 times - this is the most noticeable upgrade after adding RAM. An SSD not only boots the system faster, but also eliminates freezes when opening files or programs.

How to choose an SSD:

• 💾 Form factor:
  • 2.5" SATA - for old laptops (Lenovo T440, HP ProBook).
  • M.2 NVMe - for modern (Dell XPS 13, MacBook Pro 2017+).
• 📊 Volume: minimum 256 GB for OS, optimal 512 GB–1 TB.
• 🏆 Manufacturers: Samsung 980 Pro, WD Black SN850, Crucial P5 Plus.

How to transfer the system to SSD:

1. Download Macrium Reflect (Windows) or Carbon Copy Cloner (macOS).
2. Connect the SSD via USB-SATA adapter.
3. Create a clone of the system and a boot partition.
4. Replace disks, boot from SSD.

⚠️ Attention: If your laptop is under warranty, replacing the SSD yourself may void it. Check with the manufacturer for conditions (Apple, HP, Lenovo often allow upgrades without voiding the warranty).

How to check SSD compatibility with laptop?

Open the documentation for the model on the manufacturer's website or use services like Crucial System Scanner (https://www.crucial.com/). They analyze your system and suggest compatible drives.

5. Viruses and mining: how to detect and remove

If your laptop suddenly starts to slow down, especially when browsing websites or working with files, check it for viruses And hidden mining programs. The latter use the resources of your CPU/GPU to mine cryptocurrency.

Signs of infection:

• 🖥️ The processor is loaded at 50-100% for no apparent reason.
• 🌐 Brakes when opening certain sites (especially with pirated content).
• 🔋 Fast battery drain (mining increases energy consumption by 2-3 times).

How to check and clean the system:

1. Antivirus scanning:
   • 🛡️ Windows Defender (built-in) → Protection against viruses and threats → Quick scan.
   • 🔍 Malwarebytes (free version) - finds adware and miners.
   • 🦠 Kaspersky Virus Removal Tool — portable scanner without installation.
2. Checking browser extensions:
   • Open chrome://extensions (Chrome) or about:addons (Firefox).
   • Remove suspicious extensions (for example, "HD for YouTube", "AdBlock Pro" - often contain miners).
3. Network traffic analysis:
   • B Windows: Control Panel → Network Connections → Resource Monitor → Network Activity.
   • B macOS: Activity Monitor → Network.
   • If an unknown process is transferring data (for example, svchost.exe with high traffic), it could be a botnet.

If your antivirus doesn't help:

• 🔄 Restore your system from a restore point (Win + R → rstrui).
• 🖥️ Reinstall Windows/macOS (as a last resort).

6. Updating drivers and OS: why is it important

Outdated drivers are a common cause of slowdowns, especially after an update. Windows or macOS. For example, an out-of-date video card driver (NVIDIA, AMD) can reduce FPS in games by 30–50%, and an outdated driver Wi-Fi — cause lags when loading pages.

How to update drivers:

• 🖥️ Windows:
  • Open Device Manager (Win + X → Device Manager).
  • Look for devices with an exclamation mark (yellow triangle).
  • Right click → Update driver → Automatic search.
• 🍎 macOS:
  • Driver updates come with system updates (System settings → Software update).
  • For printers/scanners, download drivers from the manufacturer’s website (HP, Canon).

For gaming laptops (MSI, Asus ROG, Alienware):

• 🎮 Update your video card drivers through official utilities:
  • NVIDIA GeForce Experience
  • AMD Adrenalin
  • Intel Driver & Support Assistant
• 🔧 Use proprietary software to control fans and performance (for example, MSI Center, Asus Armoury Crate).

⚠️ Attention: Never download drivers from third-party sites (for example, driverpack.io). They often contain viruses or outdated versions. Use only official sources!

7. System optimization: disabling unnecessary things

Even on powerful laptops (MacBook Pro M1, Dell XPS 15) over time, “digital garbage” and background processes accumulate that slow down the system. Optimization will help restore performance without upgrading hardware.

For Windows 10/11:

• 🧹 Disk Cleanup:
  • Run Disk Cleanup (Win + R → cleanmgr).
  • Delete temporary files, trash, old updates.
• 🔄 Disabling visual effects:
  • Go to Settings → System → Advanced system settings → Performance.
  • Select Provide the best performance.
• 📁 Defragmentation (only for HDD!):
  • Open Disk optimization (Win + R → dfrgui).
  • Select the drive and click Optimize.

For macOS:

• 🗑️ Clearing cache:
  • Open Finder → Go → Go to Folder.
  • Enter /Library/Caches And ~/Library/Caches (for user cache).
  • Delete the contents of the folders (do not delete the folders themselves!).
• 📱 Removing unnecessary language packs:
  • Use Monolingual (free utility) to remove unnecessary languages from system files.

For Linux (Ubuntu, Mint, Fedora):

• 🐧 Purging packages:
  • Run in terminal:

    sudo apt autoremove  # Удаляет ненужные пакеты
    sudo apt clean       # Очищает кэш пакетов

• 🔥 Disabling unnecessary services:
  • Check startup: systemctl list-unit-files --state=enabled.
  • Disable unnecessary things: sudo systemctl disable service_name.

8. When is it time to take your laptop to a service center?

If you've tried all the tips and your laptop is still slow, there may be a hardware problem. Here are signs that you can’t do without the service:

• 💥 Laptop turns off for no reason - faulty motherboard or power supply.
• 💿 Persistent disk errors (CHKDSK does not help) - HDD/SSD wear.
• 🧠 Blue Screen of Death (BSOD) with errors IRQL_NOT_LESS_OR_EQUAL, MEMORY_MANAGEMENT - problem with RAM.
• 🔋 The battery is swollen or does not hold a charge - requires replacement.
• 🖥️ Artifacts on the screen (stripes, flickering) - malfunction of the video card or matrix.

Average prices for repairs (in Moscow, 2026):

Problem	Repair cost (₽)	Deadline
Replacing thermal paste	1 500–3 000	1–2 hours
Cleaning from dust	2 000–4 000	1 day
Replacing HDD with SSD	3,000–6,000 (excluding SSD cost)	1–2 days
Replacing RAM	2,500–5,000 (without the cost of the bar)	1 day
Motherboard repair	5 000–15 000	3–7 days

Where to repair:

• 🛠️ Official service centers (Apple, HP, Lenovo) - expensive, but with a guarantee.
• 🔧 Local workshops - cheaper, but check the reviews.
• 🏠 On your own - only if you have experience (risk of damaging the laptop).

⚠️ Attention: If the laptop is under warranty, do not open it yourself! Manufacturers (Apple, Dell, Asus) may be denied warranty repairs if the seals are broken.

FAQ: Frequently asked questions about laptop brakes

❓ The laptop slows down only in games. What's the problem?

Most likely it is:

• 🔥 Throttling due to overheating (check temperature in HWMonitor).
• 🎮 Outdated video card drivers (update via GeForce Experience or AMD Adrenalin).
• 🖥️ Lack of RAM (modern games require 16 GB).
• ⚙️ Low power settings (in Windows select scheme High performance).

Also check if there is any mining or streaming running in the background (OBS, Discord).

❓ Is it possible to speed up a laptop without replacing components?

Yes, in most cases. Try:

1. Clear the system of debris (cleanmgr, CCleaner).
2. Disable startup of unnecessary programs.
3. Update drivers and OS.
4. Reinstall the system (as a last resort).
5. Use “light” analogues of programs (for example, LibreOffice instead of Microsoft Office).

If the laptop is older than 7–10 years, an upgrade (for example, replacing the HDD with an SSD) will have more effect.

❓ Why does my laptop slow down after updating Windows?

Common reasons:

• 🔄 Driver conflict - old drivers are not compatible with the new OS version.
• 🖥️ Background indexing — after the update, the system re-indexes the files (may take several hours).
• 🦠 Hidden update errors — try rolling back or installing the update manually.

Solution:

1. Run Troubleshooting (Settings → Update & Security → Troubleshoot).
2. Go back to previous version (Settings → System → Recovery).
3. Reinstall the problematic drivers.

❓ How to check if my HDD/SSD is dying?

Use diagnostic utilities:

• 🖥️ Windows:
  • CrystalDiskInfo — shows the disk status (good/Anxiety/Bad).
  • HD Tune — tests reading speed and errors.
• 🍎 macOS:
  • Disk Utility (Programs → Utilities → Disk Utility) → First aid.
  • DriveDX - analog CrystalDiskInfo for Mac.

Signs of a “dying” disk:

• 💾 Permanent BSOD with errors CRITICAL_PROCESS_DIED or KERNEL_DATA_INPAGE_ERROR.
• 🐢 Files are copied very slowly (speed drops to 1–5 MB/s).
• 🔊 The disk makes clicks or squeaks (for HDD).

❓ Should you use “optimizers” like CCleaner or Advanced SystemCare?

With caution. These programs can:

• ✅ Help:
  • Delete temporary files and cache.
  • Clean the registry (relevant for Windows).
• ❌ Harm:
  • Delete important system files (especially CCleaner in aggressive mode).
  • Install unnecessary software (many “optimizers” themselves cause slowdowns).
  • Break registry settings (may lead to BSOD).

It's better to use built-in tools (Disk Cleanup, Troubleshooting) or proven utilities like BleachBit (for Linux/Windows).