The ERROR_INVALID_EXE_SIGNATURE Windows system error, with code 191 (0xBF), arises when running an app incompatible with the Windows architecture, say a 64-bit app blocked on a 32-bit OS, due to problems with the signature. The error message reads, 191 (0xBF) Cannot run %1 in Win32 mode. Before you proceed, check for app compatibility with the […]
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