Every laptop eventually develops problems. Some are minor annoyances you can fix in 10 minutes. Others require professional repair or a decision about whether the laptop is worth saving.

Here are the eight most common laptop problems, ranked by how frequently we see them, with honest guidance on what you can fix yourself and what needs a technician. If you are deciding whether to fix or replace your machine, our guide on whether it is worth repairing a laptop covers the cost math.

1. Slow Performance

How common: This is the number one reason people bring laptops in for service, accounting for roughly 30% of all repair requests.

Symptoms:

• Programs take forever to open
• The cursor freezes or stutters
• Task Manager shows 100% disk, CPU, or memory usage
• Boot time exceeds 2-3 minutes
• Multiple browser tabs cause the system to crawl

DIY fixes to try first:

• Check Task Manager (Ctrl+Shift+Esc) — Look at the Processes tab sorted by CPU or Memory. Kill anything using excessive resources that you do not recognize.
• Disable startup programs — In Task Manager, click the Startup tab and disable programs you do not need at boot. Most laptops have 10-20 unnecessary startup items.
• Run Disk Cleanup — Search for “Disk Cleanup” in the Start menu, select your C: drive, and check all boxes. This clears temporary files, old updates, and cache.
• Check for malware — Run a full scan with Windows Defender or a reputable tool like Malwarebytes (the free scan works fine for detection).
• Update Windows — Pending updates can cause background processes that slow everything down.

When to call a professional:

If your laptop has a traditional spinning hard drive (not an SSD), upgrading to an SSD is the single most impactful fix. A speed optimization service typically includes SSD migration, RAM assessment, startup cleanup, and system tuning.

Typical cost: $75 - $200 depending on whether hardware upgrades are involved.

2. Laptop Will Not Turn On

How common: The second most frequent issue, covering dead laptops, black screens, and devices that start but immediately shut down.

Symptoms:

• Pressing the power button does nothing
• Lights flash briefly then the laptop dies
• The fan spins but the screen stays black
• The laptop turns on and immediately shuts off

DIY fixes to try first:

• Try a different outlet and charger — It sounds obvious, but a dead charger is one of the most common causes. Borrow a compatible charger to test.
• Perform a hard reset — Unplug the charger, remove the battery (if removable), hold the power button for 30 seconds to drain residual power, then reconnect and try again.
• Connect an external monitor — If the fan spins but the screen is black, plug in an external display. If the external monitor works, the issue is your screen or display cable, not the whole laptop.
• Check the charging LED — If the charging light does not illuminate when you plug in, the issue is the charger, charging port, or battery.

When to call a professional:

If the hard reset does not work and you have confirmed the charger is functional, the issue is internal — a failed motherboard, dead power circuit, or fried component. Opening the laptop without experience risks making things worse.

Typical cost: $75 - $400 depending on the root cause. Charging port repair is on the low end, motherboard issues on the high end.

Learn more about this issue: Laptop will not turn on — causes and solutions

3. Overheating and Loud Fan Noise

How common: Extremely common, especially on laptops over 2 years old that have never been cleaned internally.

Symptoms:

• Fan runs constantly at full speed
• The bottom of the laptop is hot to the touch
• Performance drops during intensive tasks (thermal throttling)
• Random shutdowns during gaming or video editing
• The laptop feels significantly hotter than it used to

DIY fixes to try first:

• Clean the vents — Use compressed air to blow dust out of the intake and exhaust vents. Do this from the outside with the laptop off.
• Elevate the laptop — Use a laptop stand or even a book to lift it off the desk surface. Flat surfaces block bottom intake vents.
• Check running processes — Open Task Manager and check if a specific program is driving CPU usage up, which generates heat.
• Adjust power settings — In Windows, search for “Power Plan” and select Balanced instead of High Performance to reduce heat output.

When to call a professional:

If external cleaning does not help, the thermal paste between the CPU and heatsink has likely dried out. This requires disassembly to replace. A technician can also replace a failed fan and do a thorough internal cleaning.

Typical cost: $75 - $150 for fan cleaning, thermal paste replacement, and internal dust removal.

Read more: Computer overheating — causes and solutions

4. Cracked or Broken Screen

How common: One of the most frequent hardware repairs, typically caused by drops, pressure on the lid, or objects left on the keyboard when the laptop is closed.

Symptoms:

• Visible cracks, lines, or shattered glass
• Black spots or bleeding colors on part of the display
• Screen works on one half but not the other
• Display flickers or goes black intermittently (may indicate a loose cable rather than a broken panel)

DIY fixes to try first:

Honestly, there is no DIY fix for a cracked screen. If the screen is physically damaged, it needs to be replaced. You can connect an external monitor as a temporary workaround if the laptop otherwise functions normally.

If the screen flickers but is not cracked, the issue may be a loose display cable, which a technician can reseat without replacing the panel.

When to call a professional:

Any time the screen is physically damaged. Screen replacement involves removing the bezel, disconnecting delicate ribbon cables, and installing an exact-match panel. Doing this without experience risks damaging the cables or the new panel.

Typical cost:

Screen Type	Cost
Standard 1080p non-touch	$100 - $200
High-res (2K/4K) non-touch	$175 - $300
Touchscreen (1080p)	$200 - $300
Touchscreen (high-res)	$250 - $350
OLED panel	$250 - $400

5. Battery Dying Fast

How common: Every laptop battery degrades over time. After 2-3 years of daily use, most batteries hold 60-80% of their original capacity.

Symptoms:

• Battery life has dropped significantly from when the laptop was new
• Battery percentage jumps erratically (80% to 30% suddenly)
• Laptop only works when plugged in
• Windows shows “Consider replacing your battery” notification
• Battery swells (the trackpad or bottom case bulges)

DIY fixes to try first:

• Check battery health — Open Command Prompt as Admin and run powercfg /batteryreport. Open the generated HTML file to see your battery’s design capacity versus current full charge capacity. If it is below 60%, replacement is warranted.
• Reduce screen brightness — Display is the biggest battery drain. Lowering brightness by 20-30% can add significant runtime.
• Close background apps — Check Task Manager for programs running in the background that you do not need.
• Disable keyboard backlight — If your laptop has one, it draws battery.

When to call a professional:

If the battery is swollen, stop using the laptop immediately — swollen lithium batteries are a fire hazard. Do not attempt to remove a swollen battery yourself unless you know what you are doing.

For non-swollen batteries that have degraded past usefulness, replacement is straightforward for a technician. Most can be done same-day.

Typical cost: $75 - $200 for the battery and installation. Slim ultrabooks with glued-in batteries tend toward the higher end.

6. Keyboard Not Working

How common: Moderately common, caused by spills, dust buildup, worn-out key mechanisms, or ribbon cable issues.

Symptoms:

• Individual keys do not register or require excessive force
• Multiple keys in one area stopped working (liquid damage pattern)
• Keys type the wrong character
• Keyboard works intermittently
• Backlight works but keys do not register

DIY fixes to try first:

• Restart the laptop — A software glitch can cause the keyboard driver to stop responding.
• Check for debris — Turn the laptop upside down and gently shake it. Use compressed air between the keys.
• Update or reinstall the keyboard driver — Open Device Manager, expand Keyboards, right-click your keyboard, and select Uninstall Device. Restart the laptop and Windows will reinstall the driver.
• Test with an external keyboard — Plug in a USB keyboard. If it works perfectly, the issue is definitely the laptop keyboard hardware, not a software problem.

When to call a professional:

If a spill caused the issue, do not wait — liquid can corrode the motherboard over time even if the keyboard seems to partially work. A technician can assess whether only the keyboard needs replacement or if liquid reached deeper components.

Typical cost: $75 - $200 for keyboard replacement. Some laptop keyboards are standalone parts ($75-$125 installed). Others are integrated into the palmrest assembly ($125-$200 installed).

7. WiFi Not Connecting

How common: Very common, and often a software issue rather than hardware.

Symptoms:

• Cannot find any WiFi networks
• Connects but has no internet access
• Drops connection frequently
• Extremely slow WiFi compared to other devices on the same network
• WiFi adapter shows a yellow exclamation mark in Device Manager

DIY fixes to try first:

• Toggle airplane mode — Turn airplane mode on, wait 10 seconds, then turn it off. This resets the wireless adapter.
• Restart your router — Unplug your router for 30 seconds and plug it back in. Test again after 2 minutes.
• Run the network troubleshooter — Right-click the WiFi icon in the taskbar and select Troubleshoot Problems. Windows can often fix driver and configuration issues automatically.
• Forget and reconnect — Go to Settings, Network and Internet, WiFi, Manage Known Networks. Find your network, click Forget, then reconnect and re-enter the password.
• Update the WiFi driver — Open Device Manager, expand Network Adapters, right-click your WiFi adapter, and select Update Driver. If that does not work, go to your laptop manufacturer’s website and download the latest WiFi driver for your model.
• Reset network stack — Open Command Prompt as Admin and run: netsh winsock reset then netsh int ip reset then restart.

When to call a professional:

If none of the above works and other devices connect to your network normally, the WiFi card itself may have failed. For a deeper dive into wireless troubleshooting, see our guide to fixing WiFi problems at home. On most laptops, the WiFi card is a small replaceable module. If your router is the problem rather than the laptop, a WiFi networking service can diagnose and fix network-wide issues.

Typical cost: $50 - $125 for WiFi card replacement. Network-wide issues vary by complexity.

8. Blue Screen Crashes (BSOD)

How common: Common enough that most Windows users will encounter at least one blue screen during their laptop’s life. Recurring blue screens indicate a real problem.

Symptoms:

• Windows crashes to a blue screen with a sad face and error code
• The error code changes each time (often indicates RAM or driver issues)
• Blue screens happen during specific activities (gaming, video editing, browser use)
• Blue screens occur randomly regardless of what you are doing

DIY fixes to try first:

• Note the stop code — The blue screen displays a stop code like KERNEL_DATA_INPAGE_ERROR or DRIVER_IRQL_NOT_LESS_OR_EQUAL. Search for this specific code online — it often points directly to the cause.
• Update all drivers — Outdated or corrupted drivers are the number one cause of BSODs. Update your graphics driver, chipset driver, and WiFi driver from the manufacturer’s website.
• Run memory diagnostics — Search for “Windows Memory Diagnostic” in the Start menu and run it. This tests your RAM for errors and reports results after restart.
• Check the drive — Open Command Prompt as Admin and run chkdsk C: /r (this requires a restart). Bad sectors on a failing drive cause data-related blue screens.
• Undo recent changes — If blue screens started after a driver update, software install, or Windows update, try System Restore to roll back.

When to call a professional:

If blue screens persist after driver updates and memory diagnostics, the issue is likely hardware — failing RAM, a dying SSD or hard drive, or an overheating component. A technician can run extended hardware diagnostics to pinpoint the exact failing component.

Typical cost: $75 - $300 depending on whether the fix is software (driver/OS repair) or hardware (RAM or drive replacement).

Read our full guide: PC keeps crashing with blue screen — how to fix it

What to Do Before Taking Your Laptop for Repair

Before you hand your laptop to anyone, take these steps. For more detail on privacy, data protection, and choosing a trustworthy shop, read our full guide on whether it is safe to take your computer to a repair shop.

1. Back Up Your Data

If the laptop turns on and you can access your files, copy everything important to an external hard drive or cloud storage (Google Drive, OneDrive, Dropbox). Prioritize documents, photos, and anything that is not stored elsewhere.

2. Write Down Passwords

If you rely on your browser to remember passwords and do not use a password manager, write down the ones you cannot afford to lose. An OS reinstall or drive replacement will erase saved passwords.

3. Sign Out of Sensitive Accounts

Log out of banking, email, and any accounts with sensitive data. Even trustworthy repair shops do not need access to your financial accounts.

4. Remove External Media and Accessories

Take out SD cards, USB drives, and any peripherals. Remove your laptop case or skin if it could interfere with disassembly.

5. Document the Problem

Write down exactly what happens: when the problem started, what you were doing when it occurs, any error messages, and whether it happens every time or intermittently. The more detail you give the technician, the faster and more accurate the diagnosis.

6. Take Photos

Photograph your desktop layout and any visible damage. If the screen has specific areas that are broken, photo-document it before handing the laptop over. This protects both you and the repair shop.

Get Your Laptop Fixed in DFW

Techrepair DFW provides mobile laptop repair across the entire Dallas-Fort Worth area. We come to your home or office, diagnose the problem on-site, and complete most repairs same-day.

We service all major brands including HP, Dell, Lenovo, ASUS, Acer, Samsung, and Microsoft Surface across Dallas, Fort Worth, Plano, Arlington, Irving, Garland, Frisco, and 70+ other DFW cities.

Call (469) 293-2893 or contact us online to schedule a repair.