HRESULT 0x80072F7E (WININET_E_UNABLE_TO_CACHE

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Description:

WinINet could not write the file to its cache.

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WININET_E_SECURITY_CHANNEL_ERROR	WININET_E_TCPIP_NOT_INSTALLED

WININET_E_UNABLE_TO_CACHE_FILE

WININET_E_UNABLE_TO_CACHE_FILE is a WinINet HRESULT. It means that a response or downloaded resource could not be stored in the local Internet cache. Insufficient disk space, cache corruption, profile permissions, invalid cache configuration or an unavailable user profile can cause this failure.

What to check

Check free disk space, cache directory availability and permissions for the account running the application.
Clear or rebuild corrupted cache data through supported Windows or application maintenance mechanisms.
For unattended workloads, avoid depending on per-user WinINet cache state and use an API intended for services where appropriate.

Microsoft documentation

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