Skip to content
  • support@pcmasters.co.uk
  • 0800 145 5521
  • 07904 012045
  • Mon–Sat 9am–8pm, phone lines until 10pm, closed Sundays
Facebook-f Icofont-instagram Tiktok Youtube Whatsapp Globe
PC Masters logo
  • Home
  • Services
    • Laptop Repair
    • Laptop Screen Replacement
    • Computer & PC Repair
    • Data Recovery
    • Virus & Malware Removal
    • Gaming PC Repair & Upgrades
    • Business IT Support
  • Your Local Genius
  • Book Online
    • Premium Same Day Call-Out
    • Fixed By The Hour
    • Free Diagnosis Over The Phone
  • Enquiries

Author: Marouane Laagad

How to Fix an iMac That Won’t Detect Its External Time Machine Backup Drive

🕒 Verify drive format, reconnect drive, reset PRAM.

How to Fix a Gaming PC That Won’t Detect Its Internal GPU

🎮 Reseat GPU, update BIOS, verify PCIe slot functionality.

How to Fix a Laptop That Won’t Detect Its Wi-Fi Network

🌐 Reinstall Wi-Fi driver, reset router, test alternate network adapter.

How to Fix a MacBook That Won’t Detect Its External Monitor Resolution

🖥️ Adjust resolution settings in macOS, reset SMC, test alternate monitor.

How to Fix a Gaming PC That Won’t Detect Its RGB Keyboard

🌈 Reinstall RGB software, check USB connection, test alternate keyboard.

How to Fix an iMac That Won’t Detect Its External SSD

💾 Check SSD format, test alternate cable, reset NVRAM.

How to Fix a Laptop That Won’t Detect Its Docking Station Display Output

🖥️ Verify docking station compatibility, update GPU drivers, test alternate HDMI/DisplayPort cable.

How to Fix a Gaming PC That Won’t Detect Its VR Controllers

🕹️ Re-pair controllers, update VR software, check USB dongle connection.

How to Fix a MacBook That Won’t Detect Its External Webcam

📹 Check webcam compatibility, update macOS, test USB-C adapter.

How to Fix a Laptop That Won’t Detect Its Speakers After Windows Update

🔊 Roll back audio driver, reselect playback device, reinstall chipset drivers.

← previous
Next →

A full range of IT services is provided by experienced technicians and engineers at your doorstep, thanks to our same-day call-out with no-obligation quotes.

Contact Us

  • support@pcmasters.co.uk
  • 0800 145 5521
  • 020 8087 2523
  • Call-out service covering Luton, Dunstable, Houghton Regis, Harpenden & Leighton Buzzard
  • Mon–Sat 9am–8pm, phone lines until 10pm, closed Sundays

Quick Links

  • Home
  • Enquiries
  • Book Online
  • FAQs
  • Home
  • Enquiries
  • Book Online
  • FAQs

Areas We Cover

  • Luton
  • Dunstable
  • Houghton Regis
  • Harpenden
  • Leighton Buzzard
  • View all areas
  • Luton
  • Dunstable
  • Houghton Regis
  • Harpenden
  • Leighton Buzzard
  • View all areas
© 2026 PC Masters