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 freezes or crashes, 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 freezes randomly, becomes unresponsive, or crashes and restarts, this page is for you.
The most common reasons a Mac freezes or crashes
These are the issues that Keith Thomas identifies most often during on‑site visits:
• Apps using too much memory
• Damaged or outdated apps
• Low free disk space
• macOS update failures
• iCloud syncing delays
• Failing SSD or hard drive
• Damaged system files
• Kernel panic–related issues
Quick checks you can do yourself
These steps solve around 50% of freezing and crashing issues.
Check 1 – Restart the Mac
A restart clears temporary processes and frees memory.
Check 2 – Close unused apps
Quit apps you’re not using, especially Chrome, Zoom, Teams and Photoshop.
Check 3 – Check free disk space
Go to Apple menu → About This Mac → Storage. Aim for at least 20GB free.
Check 4 – Update macOS
Go to System Settings → General → Software Update.
If your Mac freezes when opening apps
This usually means:
• The app is outdated
• The app is damaged
• The app is using too much memory
Try:
• Updating the app
• Restarting the Mac
• Checking Activity Monitor
If your Mac freezes randomly
This usually means:
• Low disk space
• A failing drive
• Damaged system files
Try:
• Running Disk Utility First Aid
• Restarting the Mac
• Reinstalling macOS without erasing data
If your Mac crashes and restarts
This usually means:
• Kernel panic–related issues
• Damaged system files
• Hardware‑related problems
Try:
• Booting into Safe Mode
• Running Disk Utility
• Reinstalling macOS
When DIY stops working
You should get on‑site help if:
• The Mac freezes constantly
• Apps crash frequently
• The Mac restarts unexpectedly
• 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 keeps freezing or crashing, 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:
• Mac freezing and crashing 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 keeps freezing or crashing, 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