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 gets stuck on the login screen, 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 at the login window, shows a spinning wheel after entering your password, or loops back to the login screen, this page is for you.
The most common reasons a Mac gets stuck on the login screen
These are the issues that Keith Thomas identifies most often during on‑site visits:
• Corrupted user account
• Damaged login items
• macOS update failure
• FileVault encryption problems
• iCloud or Apple ID login conflicts
• Damaged system files
• External devices interfering with startup
• Startup volume corruption
• Low disk space preventing login
Quick checks you can do yourself
These steps solve around 40% of login screen issues.
Check 1 – Restart the Mac
Hold the power button until the Mac turns off, then turn it back on.
Check 2 – Disconnect all accessories
Unplug USB drives, hubs, printers, monitors and external SSDs.
Check 3 – Try another user account (if available)
If another account logs in, the issue is with your main user profile.
Check 4 – Boot into Safe Mode
Hold the power button → choose your startup disk → hold Shift → Continue in Safe Mode.
If your Mac freezes after entering your password
This usually means:
• Damaged login items
• iCloud or Apple ID conflicts
• FileVault unlocking issues
Try:
• Booting into Safe Mode
• Removing login items once logged in
• Restarting without external devices
If your Mac loops back to the login screen
This usually means:
• Corrupted user account
• Damaged system files
• macOS update failure
Try:
• Booting into Safe Mode
• Booting into macOS Recovery
• Reinstalling macOS without erasing data
If your Mac shows a spinning wheel at the login screen
This usually means:
• Startup volume corruption
• Low disk space
• Damaged system files
Try:
• Booting into macOS Recovery
• Running Disk Utility First Aid
• Reinstalling macOS
When DIY stops working
You should get on‑site help if:
• The Mac freezes at the login screen
• The Mac loops back to the login window
• Safe Mode does not work
• FileVault will not unlock
• Disk Utility shows errors
• You need your data preserved
These issues usually require:
• User account repair
• Startup volume repair
• macOS recovery
• Data‑safe macOS reinstall
• FileVault diagnostics
On‑Site Apple Mac Support – London & South East UK
If your Mac is stuck on the login screen, 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 login problems
• User account repair
• Data‑safe macOS recovery
• macOS reinstall and repair
• iCloud and Apple Account issues
• New Mac setup and migration
• Startup volume and FileVault issues
Book on‑site help in London and the South East UK
If your Mac is stuck on the login screen, 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