The laptop is slow: all the reasons and how to speed up work in 30 minutes

Has your laptop suddenly started to hesitate when opening programs, videos lag, and the cursor twitches like a drunk? This is not just an annoyance - a signal that something is wrong with the system. Brakes can appear either gradually (the laptop “gets old” before our eyes) or suddenly - after an update, installation of a new program, or even for no apparent reason.

In 90% of cases, the problem is solved without visiting a service center - it’s enough to know where to look And what to check. In this article we will look at all possible reasons brakes - from banal overheating to hidden viruses in the BIOS, and we will also give specific instructions for Windows 10/11, macOS and Linux. No water, only proven methods.

1. Overheating is the biggest performance killer

If the laptop starts to slow down after 10–30 minutes of use, the fault is overheating. Modern processors at higher temperatures 90°C automatically reduce frequency (throttling) so as not to burn. As a result, FPS in games drops by 2–3 times, and ordinary tasks are performed as if Pentium 4.

How to check:

• 🔥 Install HWMonitor (Windows) or iStat Menus (macOS) and look at the CPU/GPU temperature under load. Norm: up to 75–80°C for processor, up to 85°C for a video card.
• 💨 Listen to the cooler: if it operates at maximum speed, but the laptop still heats up, the problem is thermal paste or dust.
• 🖥️ Check in Task Manager (Ctrl+Shift+Esc), whether the processor is loaded at 100% for no apparent reason.

What to do:

• 🧹 Clean your laptop from dust (especially ventilation grilles and radiator). Use a can of compressed air or contact service.
• 🧴 Replace thermal paste - if the laptop is more than 2-3 years old, it could have dried out. Suitable for most models Arctic MX-6 or Noctua NT-H2.
• 🪟 Use a cooling pad with active airflow (for example, Cooler Master NotePal X3). This will reduce the temperature by 5–10°C.

⚠️ Attention: If the processor temperature exceeds 95°C in idle time, turn off your laptop immediately. Further work may lead to crystal degradation and an irreversible decline in productivity.

2. Viruses and malware: how they steal resources

Even if you have an antivirus installed, this does not guarantee security. Modern viruses disguise themselves as system processes (for example, svchost.exe or WindowsHost), mine cryptocurrency in the background or turn your laptop into part of a botnet.

Signs of infection:

• 🖱️ The cursor moves or clicks spontaneously.
• 📈 B Task Manager an unknown process is loading the CPU/GPU on 30–50%.
• 🌐 Internet traffic grows without active downloads (check in Resource Monitor).
• 🔋 The battery discharges 2-3 times faster than usual.

How to treat:

1. Scan your system with an offline antivirus. Boot from flash drive Kaspersky Rescue Disk or Dr.Web LiveDisk — they detect viruses that bypass conventional antiviruses.
2. Check your browser extensions. Remove suspicious plugins in chrome://extensions (especially with names like "Adobe Flash Player Update").
3. Use Malwarebytes to search for spyware. The free version finds what it misses Windows Defender.

3. Cluttered system: when “garbage” eats up speed

Over time, Windows, macOS and Linux accumulate gigabytes of unnecessary files: browser cache, temporary update files, remnants of deleted programs. This not only takes up disk space, but also slows down the system by 15–40% (according to tests AVG Technologies).

Where to look for trash:

Automatic cleaning tools:

• 🪟 Windows: CCleaner (be careful with the registry!), BleachBit (for deep cleaning).
• 🍎 macOS: CleanMyMac X, OnyX.
• 🐧 Linux: sudo apt autoremove + sudo journalctl --vacuum-size=100M.

Delete browser cache|Clear Temp folder|Check startup|Delete old restore points|Optimize registry (Windows only)-->

4. Lack of RAM: when 8 GB is no longer enough

If the laptop slows down when working with Photoshop, Chrome (with 20+ tabs) or modern games, the problem is lack of RAM. In 2026 8 GB - this is the minimum for office tasks, but for multimedia and games it is required 16–32 GB.

How to check:

1. Open Task Manager → tab Performance → Memory.
2. If free less than 10% from the total amount of RAM - memory has become a “bottleneck”.
3. Look at what programs are eating up memory. For example, Chrome can eat 1–2 GB to the tab!

Solutions:

• 🔄 Close unnecessary programs. Use Process Explorer (from Microsoft) to find hidden processes.
• 🔧 Disable unnecessary services. On Windows: msconfig → Services → hide system ones, disable unnecessary ones.
• 💾 Add RAM. Check the maximum supported volume on the manufacturer's website (for example, Crucial System Scanner).
• 🖥️ Use a swap file (if it is not possible to upgrade the RAM). Optimal size: 1.5 × amount of RAM.

⚠️ Attention: If you see a message "Not enough memory" in games or programs, do not increase the page file beyond 32 GB - this can lead to degradation of the SSD.

5. Hard drive vs SSD: why HDD kills speed

If your laptop is equipped HDD (not SSD), then even with a clean system it will slow down. Reason - mechanical nature of hard drives: their read/write speed is 5–10 times lowerthan SSD. For example, booting Windows from the HDD takes 40–60 seconds, and with SSD - 10–15 seconds.

How to determine the disk type:

• 🪟 Windows: Win + R → enter msinfo32 → Components → Storage devices.
• 🍎 macOS: About This Mac → System Report → Hardware → Storage.
• 🐧 Linux: lsblk -o NAME,ROTA (if ROTA=1 - this is HDD, ROTA=0 — SSD).

What to do if you have a HDD:

1. Replace with SSD. Even budget Kingston A400 or Crucial BX500 will give a speed increase of 3–5 times.
2. Optimize HDD:
   • 🔄 Defragment (dfrgui on Windows).
   • 📁 Move swap files and temporary files to another partition.
   • 🛑 Disable indexing for the disk (disk properties → uncheck "Allow indexing...").

6. Outdated drivers and BIOS: hidden brakes

Drivers are “translators” between the hardware and the system. If they are outdated, the laptop is not using the full potential of the components. This is especially critical for:

• 🎮 Video cards (FPS in games drops by 30–50%).
• 🔊 Sound card (stuttering, wheezing in the speakers).
• 📶 Wi-Fi/Bluetooth adapters (slow internet, connection interruptions).
• 🖥️ Motherboard chipset (general system brakes).

How to update drivers right:

1. Video card (NVIDIA/AMD/Intel):
   • Remove old drivers via Display Driver Uninstaller (DDU).
   • Download the latest ones from the official website (NVIDIA, AMD, Intel).
   • Install in clean mode (check mark "Custom Install → Perform clean install").
2. Other drivers:
   • Use Snappy Driver Installer (offline database) or Driver Booster.
   • For laptops Lenovo/Dell/HP download drivers from the manufacturer’s website (universal packages are often buggy).

BIOS update:

An outdated BIOS may limit processor performance, not support new RAM modules, or cause conflicts with Windows 11. Update the BIOS only if:

• 🔧 There are critical bugs (for example, the laptop does not wake up from sleep).
• 🆕 You are upgrading your processor (new CPU support required).
• 🛡️ The manufacturer has released a patch for vulnerabilities (for example, Spectre/Meltdown).

⚠️ Warning: Continuously updating the BIOS will interrupt the power supply and may permanently kill the motherboard. Use UPS (uninterruptible power supply) or laptop with a charged battery.

7. Background processes and startup: who steals resources?

Modern programs like to launch along with the system and hang in the background. For example, Steam, Discord, OneDrive or NVIDIA GeForce Experience can eat up to 30% CPU And 1–2 GB RAM just like that.

How to find and disable:

• 🪟 Windows:
  • Ctrl + Shift + Esc → tab Autoload → sort by "Impact on loading".
  • Disable everything except antivirus and drivers (for example, Realtek Audio).
• 🍎 macOS:
  • System Preferences → Users and Groups → Login Items.
  • Remove unnecessary elements (for example, Adobe Creative Cloud Helper).
• 🐧 Linux:
  • Check startup in ~/.config/autostart/.
  • Use systemctl --user list-units --type=service to disable unnecessary services.

Hidden processes:

Some programs are disguised as system ones. For example, Epic Games Launcher may run a background process EpicOnlineServices, and Microsoft Teams — Teams.exe even after closing.

How to calculate:

1. Open Resource Monitor (resmon on Windows).
2. Go to the tab CPU or Disk.
3. Pay attention to processes with high activity (for example, RuntimeBroker.exe, Service Host: Local System).
4. Check them on Google - often they are legitimate system tasks, but sometimes they are viruses.

8. Hardware problems: when it’s time to take it to service

If all software methods have been tried, but the laptop still slows down, the problem may be gland. Here are the signs of hardware problems:

Diagnosis at home:

• 🔋 Battery test: On Windows do powercfg /batteryreport → open the generated report battery-report.html. If "Calculated capacity" less 50% from "Reference" - It's time to change the battery.
• 💾 HDD/SSD test: use CrystalDiskInfo (check the parameter "Reallocated Sectors Count" - if it is not equal 0, the disk dies).
• 🧠 RAM test: boot from flash drive MemTest86 and check the memory for errors (minimum 4 passes).

⚠️ Attention: If the laptop stops braking after removing battery (working from the network), this is a sign swollen battery. Unplug it immediately - risk of fire!

FAQ: Frequently asked questions about laptop brakes

# Отключить ненужные службы
sudo systemctl disable --now snapd.service
sudo systemctl disable --now apt-daily.service

# Установить проприетарные драйверы NVIDIA (Ubuntu/Debian)
sudo ubuntu-drivers autoinstall
sudo reboot

# Оптимизировать SWAP (если мало ОЗУ)
sudo fallocate -l 4G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile

sudo prime-select nvidia  # для игр
sudo prime-select intel  # для экономии батареи