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

Your laptop has become slower in opening programs, “thinks” when switching between browser tabs, or even freezes for a few seconds for the simplest tasks? This doesn't always mean it's time to buy a new device. In 80% of cases, brakes are caused by software problems that can be solved independently - without contacting a service center.

We have analyzed thousands of user reviews and technical data from manufacturers (Lenovo, HP, Dell, ASUS, Acer) to make up current guidance for 2026. The article contains only proven methods that work for Windows 10/11, macOS And Linux (Ubuntu, Mint). No “water” - just specific steps with explanations of why they help.

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

Before you begin “treatment”, you need to understand source of the problem. Brakes can be caused by:

• 🔋 Overheating — dust in the cooling system or dried thermal paste reduces performance by 30-50%.
• 🖥️ RAM load — browsers (Chrome, Edge) and background processes “eat up” memory, leaving crumbs for the system.
• 💾 Disk full - if on C: With less than 10% free space left, Windows begins to slow down.
• 🦠 Viruses/miners — malware can silently use up to 90% of CPU/GPU resources.
• 🔄 Outdated drivers - especially relevant for video cards NVIDIA/AMD and Wi-Fi adapters.

How to quickly check? Open Task Manager (Ctrl+Shift+Esc) and sort processes by load on CPU, Memory And Disk. If some process constantly “hangs” at the top of the list, this is your culprit.

For in-depth diagnostics, use the following utilities:

• 🔍 HWiNFO — will show the temperature of the components and the load on the processor cores.
• 📊 CrystalDiskInfo — checks the health of the SSD/HDD (parameter Reallocated Sectors Count should not be yellow/red).
• 🛡️ Malwarebytes — scans the system for viruses and mining software.

⚠️ Attention: If the processor temperature (Intel Core i5/i7/i9 or AMD Ryzen) exceeds 90°C in idle time - turn off your laptop immediately! Further work may lead to irreversible damage to the chip.

2. Cleaning the cooling system: when dust stifles performance

Dust is the main enemy of laptops. It accumulates on the radiator and fan, blocking air circulation. As a result, the processor throttling (automatically reduces frequency) to avoid burning out. How to check:

1. Install HWiNFO and look at the temperature under load (run a stress test in Prime95).
2. If the temperature exceeds 85°C - it's time to clean.

How to clean it yourself:

Remove the battery and turn off the power|Unscrew the back cover (use a Phillips screwdriver)|Carefully remove the cooler and radiator (do not pull the wires!)|Remove dust with a brush and vacuum cleaner (at minimum power)|Apply new thermal paste (Arctic MX-6 or Noctua NT-H2)|Reassemble the laptop in reverse order-->

If you are not confident in your abilities, contact the service. Average cleaning cost: 1 500–3 000 ₽ (depending on model).

What happens if you don't clean your laptop?

Accumulating dust acts as a heat insulator. At critical temperature (100°C+) the processor automatically shuts down to avoid damage. In the worst case - the north/south bridge will burn out on the motherboard, and the laptop will have to be thrown away.

3. RAM optimization: how to free up memory without buying new sticks

If in Task Manager it's clear that Memory loaded at 80-90% - the system begins to use swap file (virtual memory on disk), which is 10-100 times slowerthan RAM. Solutions:

Problem	Solution	Effect
The browser eats up memory	Close unnecessary tabs, use uBlock Origin to block ads	Reduced RAM consumption by 30-50%
Background programs	Disable startup via Settings → Applications → Startup	Speeding up system startup 20-40%
Insufficient RAM (4 GB or less)	Add another bar (for example, 8 GB DDR4 2666 MHz)	Complete solution to brake problems in 90% of cases

For Windows 10/11 there is a hidden function - memory compression. Enabled via the registry:

REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v EnableUltraLowLatencyMode /t REG_DWORD /d 1 /f

⚠️ Attention: If you have laptop with integrated graphics (Intel UHD Graphics or AMD Radeon Vega), then part of the RAM is reserved for video memory. B BIOS (F2/Del when loading) you can reduce this reserve by 1–2 GB to 256–512 MB.

4. Disk Cleanup: Why Free Space = Speed

If on the system disk (C:) less left 10 GB free space, Windows starts fragment files and slow down write/read operations. Particularly critical for HDD (on SSD the effect is less, but still there).

How to free up space:

• 🧹Delete temporary files via Disk Cleanup (Win + R → cleanmgr).
• 🗑️ Clear browser cache (Chrome://settings/clearBrowserData).
• 🎮 Delete unused games (for example, via Steam → Library → Delete).
• 📁 Transfer heavy files (videos, photos) to an external drive or to the cloud (Google Drive, Yandex Disk).

For SSD be sure to turn it on TRIM (optimizes drive operation):

fsutil behavior set disabledeletenotify 0

5. Viruses and mining: how to detect and remove “invisible” resource thieves

Modern viruses and mining software (for example, WannaMine or XMRig) can run in the background for years, using up to 90% CPU/GPU for mining cryptocurrency. Signs of infection:

• 🔥 The laptop fan constantly runs at maximum speed.
• 📉 Productivity drops “out of the blue” (even during idle time).
• 🔌 The battery discharges 2-3 times faster than usual.

How to check and cure:

1. Download Malwarebytes or Kaspersky Virus Removal Tool (portable versions that do not require installation).
2. Run full scan (may take 1-2 hours).
3. Remove any threats found and reboot your laptop.

For advanced users - check via Process Explorer (alternative to Task Manager):

• Download from the official website Microsoft.
• Sort processes by CPU Usage.
• If you see an unknown process with a high load, Google its name.

⚠️ Attention: Some miners disguise themselves as system processes (for example, svchost.exe or lsass.exe). If you are not sure - do not delete manually, use an antivirus.

6. Updating drivers and BIOS: why is it important

Outdated drivers are a common cause of slowdowns, especially for:

• 🎮 Video cards (NVIDIA GeForce, AMD Radeon) - affect gaming performance and rendering.
• 📶 Wi-Fi/Bluetooth adapters - can cause network lags.
• 💾 NVMe SSD — new firmware increases the read/write speed on 10-30%.

How to update drivers:

1. For Windows: Settings → Update & Security → Windows Update → View additional updates.
2. For video cards: download the latest version from the website NVIDIA or AMD.
3. For macOS: System settings → Software update.

Update BIOS - an extreme measure, but sometimes solves compatibility and performance problems. Danger! If you interrupt the process, the motherboard will fail. Instructions:

Download the firmware from the manufacturer's official website|Connect the laptop to a power source (do not update from battery!)|Close all programs|Follow the manufacturer's instructions (usually via F2/Del while booting)|Do not turn off the laptop until it is finished (may take 5-10 minutes)-->

💡

BIOS update may increase productivity by 5–15% by optimizing power management and supporting new processors. But it’s worth the risk only if there is a specific problem (for example, the laptop does not see the new NVMe SSD).

7. Reinstalling Windows: when you really need it

If all the previous methods did not help, perhaps the system clogged at the registry level or system files are damaged. Reinstalling Windows is a radical but effective way to return your laptop to its factory state.

How to do it right:

1. Save important data to an external drive (documents, photos, browser passwords).
2. Download Media Creation Tool from the site Microsoft and create a bootable USB flash drive (USB 3.0, 8 GB+).
3. Boot from the flash drive (F12/Esc when turned on) and select "Custom installation".
4. Delete all partitions on the system drive and install Windows on the unallocated space.

After installation:

• 🔑 Activate Windows (if it was tied to the motherboard, activation will take place automatically).
• 🔧 Install drivers in order: chipset → video card → sound → network.
• 🛡️ Install an antivirus and make the first update.

⚠️ Attention: On laptops with pre-installed Windows (For example, Lenovo Legion, ASUS ROG) the recovery image is stored in a hidden partition of the disk. Reinstallation via OneKey Recovery (or analogues) will retain the license and drivers.

8. Hardware upgrades: when software is powerless

If the laptop is larger 5 years, and the brakes are not eliminated by software - it’s time to think about an upgrade. The most effective improvements:

Component	Recommendation	Performance boost	Cost (2026)
RAM	16 GB DDR4 3200 MHz (two 8 GB sticks)	to 40% in multitasking	3 000–5 000 ₽
SSD	Samsung 980 Pro 1TB (PCIe 4.0)	system boot for 5–10 seconds	8 000–12 000 ₽
Battery	Original or Green Cell	opening hours until 6–8 hours	2 000–6 000 ₽

Please check compatibility before purchasing:

• 🔍 For RAM: use Crucial System Scanner or Kingston Memory Search.
• 💾 For SSD: Check the laptop documentation for the supported form factor (M.2 2280, SATA III etc.).

If the laptop is under warranty, an upgrade may void it. Check with the manufacturer for conditions.

FAQ: Frequently asked questions about laptop brakes

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

Most likely the culprits are:

• 🎮 Outdated video card drivers (update via GeForce Experience or AMD Adrenalin).
• 🔥 CPU throttling (check the temperature in MSI Afterburner).
• ⚙️ Incorrect graphics settings (lower resolution or disable ray tracing).

Also check if the game is using integrated graphics instead of discrete. B NVIDIA Control Panel select to play high performance processor.

❓ Is it possible to speed up a laptop with 4 GB of RAM without an upgrade?

Yes, but the effect will be limited:

• 🔄 Disable all programs from startup.
• 🌐 Use lightweight browsers (Firefox with disabled tabs or Brave).
• 🛠️ Increase the swap file to 8–12 GB (Settings → System → About the system → Advanced settings → Performance → Advanced → Virtual memory).

However, for modern tasks (for example, working in Photoshop or AutoCAD) 4 GB critically little. Consider upgrading to at least 8 GB.

❓ Why does my laptop slow down after updating Windows?

Common reasons:

• 🔄 Driver conflict — roll back the video card/chipset driver update.
• 🛠️ Telemetry services - disable them via Settings → Privacy → Diagnostics and feedback.
• 🗑️ Residual files - perform disk cleanup (cleanmgr /sagerun:1 on the command line).

If the problem appears after major update (For example, Windows 11 23H2), try rolling back: Settings → System → Recovery → Return to previous version.

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

Use the utilities:

• 📊 CrystalDiskInfo - will show the state of health (Good/Warning/Bad).
• 🔍 Victoria HDD — will test the disk surface for bad sectors.

Critical parameters for SSD:

• Reallocated Sectors Count — if the value > 10, the disk will soon fail.
• Wear Leveling Count — shows cell wear (the higher, the worse).

For HDD pay attention to Seek Error Rate And Spin Retry Count. If they are not equal 0 - get ready for replacement.

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

No, it's not worth it. These programs:

• 🗑️ Removes the cache, which Windows can use to speed things up.
• ⚙️ They break the registry, which leads to even bigger brakes.
• 🛡️ They often support themselves malicious software (especially free versions).

Exception - BleachBit (for Linux) or built-in disk cleanup on Windows. But they also need to be used carefully.