"The security health cannot be reported at the moment" show in sophos central

Can you confirm the the "Sophos Health Service" service ("C:\Program Files (x86)\Sophos\Health\SophosHealth.exe") is running. 

Could you attach a copy of the latest log file for that component? E.g.
"C:\ProgramData\Sophos\Health\Logs\Health.log"

You could maybe check with Process Monitor that the SophosHealth.exe process is able to update values under:
"HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Sophos\Health\Status"

Does the following key exist:
"HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Sophos\Remote Management System\ManagementAgent\Adapters\SHS"

Does it have a value under it called "DLLPath", which points to the DLL of Health, E.g. "C:\Program Files (x86)\Sophos\Health\ShsAdapter.dll"?

Regards,
Jak

Hi Jak, the PC is using Windows 7 32-bit, I only found the path for C:\Program Files\Sophos\Health\SophosHealth.exe, and yes it is running.

Please refer to the attached Health.log at below.

There is no sophos under "HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\", and no key exist too.

Health log:

1524.Health.log

Hi,

I made the assumption it would be a 64-bit computer so HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Sophos would not exist, the sophos keys would all be under: "HKEY_LOCAL_MACHINE\SOFTWARE\Sophos\"

That said, from the logs, specifically this error:
ERROR IoThread::operator() Standard exception: Failed to open transacted registry key: 6801

could you try:

https://community.sophos.com/kb/en-us/124218

Regards,
Jak