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 Mac apps freeze or stop responding, 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 apps freeze, show the spinning wheel, or stop responding completely, this page is for you.
The most common reasons Mac apps freeze
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• Damaged or outdated apps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
• iCloud syncing delays
• Spotlight indexing
• macOS update issues
• Damaged system files
• Corrupted user account
Quick checks you can do yourself
These steps solve around 50% of freezing issues.
Check 1 – Force‑quit the app
Press Option–Command–Esc → select the app → Force Quit.
Check 2 – Restart the Mac
A restart clears temporary processes and frees memory.
Check 3 – Update the app
Open the App Store → Updates, or update directly from the developer.
Check 4 – Check free disk space
Go to Apple menu → About This Mac → Storage. Aim for at least 20GB free.
If apps freeze when opening files
This usually means:
• Damaged files
• App corruption
• iCloud syncing delays
Try:
• Opening a different file
• Updating the app
• Restarting the Mac
If apps freeze after a macOS update
This usually means:
• Spotlight indexing
• iCloud syncing
• App incompatibility
Try:
• Leaving the Mac plugged in for a few hours
• Restarting the Mac
• Updating the app
If apps freeze randomly
This usually means:
• Low disk space
• Damaged system files
• Failing drive
Try:
• Running Disk Utility First Aid
• Restarting the Mac
• Reinstalling macOS without erasing data
If apps freeze only on one user account
This usually means:
• Corrupted user account
• Damaged preferences
• Permissions issues
Try:
• Testing the app on another user account
• Restarting the Mac
• Reinstalling macOS without erasing data
When DIY stops working
You should get on‑site help if:
• Apps freeze constantly
• Apps crash or stop responding every time
• macOS reinstall does not fix the issue
• Disk Utility shows errors
• You need your data preserved
These issues usually require:
• App and system configuration repair
• macOS recovery
• Data‑safe macOS reinstall
• User account repair
• Permissions and system file diagnostics
On‑Site Apple Mac Support – London & South East UK
If your Mac apps keep freezing, 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:
• App freezing and performance issues
• macOS configuration repair
• Data‑safe macOS recovery
• macOS reinstall and repair
• iCloud and Apple Account issues
• New Mac setup and migration
• User account and permissions diagnostics
Book on‑site help in London and the South East UK
If your Mac apps are freezing or not responding, 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