installation error

Hi

Please take a look at this thread:

https://support.industry.siemens.com/tf//WW/de/posts/wincc-7-5-update-3-startet-an-einem-rechner-nicht-rs-exe-invalid-signature/240850?page=0&pageSize=10

Hope this helps

Regards

hosein

kaif900

please help me to fix this error "RX.EXE with valid signature not found " durring installation wincc scada v7.4 on OS window 7 64 bit

 Hi ,

This error message appears when the certificates are not up to date, so a windows update must be done! 

Note that you could also have system incompatibilities, check the liberated OS for Wincc 7.4 in the Compatibility Tool for Automation and Drive Technology