Windows phone Lumia 535 with Windows 8.1 cannot update to Windows 10 via the OTC Updater at the moment

Question

The OTC updater seems to be no longer working. Not sure though. Please help with a way forward. Asking for a client. Thanks in advance.

Answer 1

Windows Update service migrated to TLS 1.2 but OTC Updater doesn't support it.
You can still get OTC Updater to work by adding the following values to the registry:

For 32-bits OSes

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v2.0.50727]
    "SystemDefaultTlsVersions" = dword:00000001
    "SchUseStrongCrypto" = dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
    "SystemDefaultTlsVersions" = dword:00000001
    "SchUseStrongCrypto" = dword:00000001

For 64-bits OSes

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v2.0.50727]
    "SystemDefaultTlsVersions" = dword:00000001
    "SchUseStrongCrypto" = dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v4.0.30319]
    "SystemDefaultTlsVersions" = dword:00000001
    "SchUseStrongCrypto" = dword:00000001