Why Choose Keith Thomas
• 20 years of experience as a Senior Apple Support Specialist at Apple Computer UK HQ.
• Former Apple Computer UK Mac Support Specialist and Apple Authorised Service Provider background.
• Established and Independent since 2010 for on‑site Apple Support Service – no call centres, no outsourcing, no hardware repairs. Over 25,000+ Apple problems resolved. Unique on-site Apple Support Service. backed up with Independent Apple Telephone Support Assistance.
• Trusted by home users, small businesses, and professionals across London and the South East UK.• Clear, honest, software‑only support. No Hardware Repairs. Expert Apple Consultancy Service.
On‑site Apple Mac Support in London and the South East UK
What this page covers
This guide explains the real reasons a Mac shows a kernel panic, the steps you can try yourself, and when it’s time to get professional on‑site help. It applies to:
• MacBook Air
• MacBook Pro
• iMac
• Mac mini
• Mac Studio
If your Mac restarts unexpectedly, shows a black screen with a message saying it restarted because of a problem, or freezes before rebooting, this page is for you.
The most common reasons a Mac shows a kernel panic
These are the issues that Keith Thomas identifies most often during on‑site visits:
• Faulty or incompatible apps
• Damaged system files
• macOS update failures
• Failing SSD or hard drive
• External devices causing system crashes
• Corrupted user account
• Low‑level system conflicts
• Hardware‑related issues
Quick checks you can do yourself
These steps solve around 40% of kernel panic cases.
Check 1 – Restart the Mac
A restart clears temporary system processes that may have caused the crash.
Check 2 – Disconnect external devices
Unplug USB drives, hubs, printers, monitors and external SSDs.
Check 3 – Update macOS
Go to System Settings → General → Software Update.
Check 4 – Check for app updates
Outdated apps can trigger kernel panics, especially browsers and security tools.
If your Mac restarts with a “problem report”
This usually means:
• An app crashed the system
• A background process failed
• A system extension caused instability
Try:
• Updating or removing the app mentioned in the report
• Restarting the Mac
• Checking Activity Monitor for heavy apps
If your Mac shows repeated kernel panics
This usually means:
• Damaged system files
• A failing SSD or hard drive
• A corrupted user account
• Low‑level macOS issues
Try:
• Booting into Safe Mode
• Running Disk Utility First Aid
• Reinstalling macOS without erasing data
If your Mac crashes during startup
This usually means:
• Startup volume corruption
• Damaged system files
• Hardware‑related issues
Try:
• Booting into macOS Recovery
• Running Disk Utility
• Reinstalling macOS
When DIY stops working
You should get on‑site help if:
• Kernel panics happen repeatedly
• The Mac crashes during startup
• Safe Mode does not work
• Disk Utility shows errors
• macOS reinstall does not fix the issue
• You need your data preserved
These issues usually require:
• Startup volume repair
• macOS recovery
• Data‑safe macOS reinstall
• User account repair
• Hardware diagnostics
On‑Site Apple Mac Support – London & South East UK
If your Mac shows kernel panics, Keith Thomas provides an often same‑day on‑site support service across:
• Central London
• West, North, South and East London
• Surrey
• Berkshire
• Hampshire
• Wiltshire
Keith Thomas is a Mac Support Specialist in:
• macOS kernel panic issues
• Data‑safe macOS recovery
• macOS reinstall and repair
• iCloud and Apple Account issues
• New Mac setup and migration
• Startup volume and hardware diagnostics
Book on‑site help in London and the South East UK
If your Mac shows kernel panics, Keith Thomas can visit your home or office and get you working again.
Keith Thomas – Apple Mac Support Specialist
Established 2010 – Open 09:30–20:30, 7 Days
Contact Keith Thomas by Telephone: 07800 940756 or by Text to: 07800 940756, or simply complete an online website contact form 24/7