Windows 10 - Spinning icon with blue background (lock screen issue)

Possible solutions/causes:

• Don't have any devices (USB, HDMI, etc.) connected during boot
• Press Enter / click left on mouse multiple times in succession until the lock screen comes back
• Run sfc /scannow
• Run DISM /Online /Cleanup-Image /RestoreHealth
• To shrink the disk, run Dism.exe /online /Cleanup-Image /StartComponentCleanup /ResetBase
• Dism.exe /online /Cleanup-Image /SPSuperseded
• Disable startup items - Autoruns
• Disable Windows telemetry e.g. OO ShutUp10 or reclaimWindows10.ps1
• Windows Event Logs
• Antivirus logs

Changing addresses (UK)

As PO boxes are not currently a cheap thing (about £300 a year through Royal Mail), it's necessary to update your details in many places so you don't lose your post. Here's a checklist of things you probably need to change your address on:

• Government records
• DVLA
• HMRC
• Electoral Services
• Student Loans Company
• Organ Donor Register
• Your local GP
• TV Licensing
• Council Tax
• Work
• Hygiene
• Dentists
• Opticians
• Utilities
• Internet
• Electricity
• Gas
• Water
• Insurance
• Payments
• Banks
• Online banks like PayPal
• Mobile phone or SIM contracts
• Website and domain hosting
• Charities
• Boxes (Graze, Ocado etc.)
• Online ordering
• Amazon
• eBay
• Ticketmaster
• Fundraising websites (Indiegogo, Kickstarter)
• Takeaways (Deliveroo, Just Eat, Uber Eats)
• iTunes, Google Play, Microsoft Store, Xbox Store, Playstation Store
• Retail
• Loyalty/rewards cards
• Store credit cards
• AI
• Siri
• Google Assistant