PC and Mac Repair in Geneva: A Practical Guide for 2026

Posted on , updated on by Miguel
Man with protective glasses soldering an electronic board on a work table

In this 2026 guide, you’ll find useful troubleshooting steps to diagnose common PC and Mac issues, protect your data, and determine when to call a professional in Geneva.

Whether you’re an individual, a self-employed professional, or a small business, you’ll know which checks to perform safely and when to stop troubleshooting to avoid making the problem worse. We serve Geneva and the surrounding towns—Lancy, Vernier, Meyrin, Carouge, Onex, and Thônex—as well as the Nations area. For immediate assistance, check out our PC and Mac repair service.

Why repair rather than replace?

  • Circular economy: Extending the life of your device (battery, SSD, RAM, fan, keyboard) reduces its environmental impact and avoids unnecessary expenses.
  • Actual performance: A system cleanup, a clean reinstall, or an SSD/RAM upgrade can often transform a “slow” computer into a perfectly responsive machine.
  • Security and Compliance: A properly executed repair includes backing up data, securely erasing data (before resale), and restoring compliance (updates, antivirus software, encryption, accounts).
  • Time saved: Having your apps, bookmarks, fonts, printers, and VPNs migrated correctly saves you days of hassle.

How to Approach Troubleshooting (PC & Mac) Like a Pro

Before performing any PC or Mac repairs, start with a simple, structured diagnostic.

1) The 6 Quick Questions

  1. Is this a new problem or a recurring one?
  2. Did it start happening after an update, a shock, exposure to liquid, or an unusual noise?
  3. Does it run on AC power and on battery power (for laptops)?
  4. Has the fan noise changed (louder, cyclical, absent)?
  5. Is the storage space almost full (less than 10–15% free)?
  6. Do you have a recent backup (Time Machine, OneDrive/SharePoint, NAS, USB drive)?

2) Basic Physical Checks

  • Power Supply & Cables: Original charger, undamaged cable, other wall outlet.
  • Peripherals: Unplug everything (USB-C dock, monitors, hard drives, printers).
  • Heat: Keep the base well-ventilated, ensure the vents are unobstructed, and do not place the unit on a comforter or sofa.

3) Initial testing on Windows 10/11

  • Start in Safe Mode (Shift + Restart → Troubleshoot → Advanced options).
  • System Tools (Admin Command Prompt): 
    sfc /scannow
DISM /Online /Cleanup-Image /RestoreHealth
chkdsk C: /scan
  • Task Manager: Startup tab → disable anything you don’t need.
  • Windows Update and drivers (chipset, graphics card, network).
  • Disk space: Aim for >15% free; consider switching to an NVMe SSD if you’re still using a HDD.

4) Initial testing on macOS

  • Safe Mode: Restart while holding down the Shift key (the procedure varies between Apple Silicon and Intel).
  • Disk Utility: “SOS / First Aid” on the system volume and data volumes.
  • Reset NVRAM/PRAM (Intel Mac) and SMC if the computer exhibits unusual behavior.
  • Activity Monitor: CPU/Memory/Disk tab—check for abnormal processes.
  • Storage: Keep 15–20% of your storage space free for Spotlight, caches, and Time Machine snapshots.

Common Problems and Practical Solutions

A. The computer won’t turn on anymore

  • PC: Try a different cable or charger; if it’s a tower, check the PSU switch, the power outlet, and the motherboard beeps (if applicable). Unplug everything except the keyboard, mouse, and monitor.
  • Mac: Check the USB-C charger (make sure it has sufficient wattage), and try an SMC reset (Intel).
  • Things to check: Charging LED, fan noise, signs of life (backlit keyboard), black screen but backlight on.
  • When to seek service: fluid leakage, odor, sparks, swollen battery, drop → mandatory service.

B. Very slow startup, random freezes, noisy fans

  • Possible causes: Overloaded or faulty SSD, overheating (dust/thermal paste), unstable driver, aggressive third-party antivirus software, insufficient RAM.
  • Solutions: thermal cleaning, NVMe SSD upgrade, clean reinstall, updated drivers, switch back to Windows Defender, add 8–16 GB of RAM if possible.
  • Mac: Spotlight reindexing, iCloud Drive full, Photos processing, Chrome processes. Consider a clean install of macOS and a fast external SSD for testing.

C. Black Screen / No Image

  • Check: brightness, external display, cable/port, display switching (Win + P).
  • Mac: Try an external display, a certified video adapter, or a NVRAM reset if you’re having issues with resolution or the display.
  • Graphics card: If you experience 3D artifacts or crashes, check your drivers or VRAM. On a desktop computer, test a different GPU if available.

D. Battery drains too quickly / charging is unstable

  • Windows: Battery Report (powercfg /batteryreport), power plans, chipset drivers.
  • macOS: Battery Cycle Count, Status in “About This Mac.”
  • Replacements: often cost-effective (MacBooks, laptops) → opt for high-quality parts.

E. Noises, clicks, and scratching sounds (storage)

  • A hard drive that makes a “clicking” noise = a warning sign. Stop writing to it. Back it up immediately.
  • Always create a disk image or clone the drive before attempting any repairs. If the data is critical, don’t keep trying —entrust the data recovery to a professional.

F. Slowdowns in everyday office use

10-Minute Checklist:

  1. Keep at least 15% of the drive free.
  2. Startup: Disable automatic startup for Slack/Teams/Zoom if not needed.
  3. Uninstall those “miracle optimizers.”
  4. Update your operating system, Office, and drivers.
  5. Browser: profiles/keys, extensions (keep only the essentials).
  6. OneDrive/iCloud: Check synchronization and files on demand.
  7. Antivirus: Windows Defender is sufficient in most cases.
  8. Quick SSD test (SMART), CPU temperature (remember to dust it off).
  9. Spotlight/Windows Search Indexing: Let the indexing finish.
  10. If the computer has 4–8 GB of RAM, upgrading to 16 GB makes all the difference.

Need PC or Mac repairs in Geneva?

For diagnostics, repairs, SSD/RAM upgrades, or data recovery, check out our PC and Mac repair service. We can provide on-site service or accept your device at our permanent workshop located at 4 Rue du Commerce, 1204 Geneva.

Before you come in, please check our rates and service areas. To schedule a service visit, call +41 79 868 50 50 or use our contact form.

Whether you need to manage an IT infrastructure or meet the ongoing needs of an SME, discover the IT support services for SMEs offered by i4M Services Informatiques Sàrl.

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Miguel
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