[niculaita]

C:\signtoolm>signtool.exe sign -a -f current_cert.pfx -p nv1d1aRules -t http://timestamp.verisign.com/scripts/timstamp.dll Exetools.sys
Done Adding Additional Store
SignTool Error: ISignedCode::Sign returned error: 0x80880253
The signer's certificate is not valid for signing.
SignTool Error: An error occurred while attempting to sign: Exetools.sys

Number of errors: 1
C:\signtoolm>signtool.exe sign -a -f NVidia-OPM.pfx -p Green-87! -t http://timestamp.verisign.com/scripts/timstamp.dll E
xetools.sys
SignTool Error: No certificates were found that met all the given criteria.

Number of errors: 1