Why is the installation of STEP 7 V5.6 or single HSPs aborted?
Siemens signs the SIMATIC software digitally. When the applications are run, certificates are checked for validity. In order to maintain high security standards, the SIMATIC STEP 7 software has a digital signature in the form of certificates. This ensures the trustworthiness and authenticity of the installed components. If it is not possible to install a product or a single HSP, this might be due to the fact that root certificates in the operating system have to be updated.
Make sure that you regularly update the operating system with the updates provided by Microsoft. These updates also include a root certificate update utility.
Detailed information about certificates and how to use them is available on the following web sites, for example:
- Management of Certificates
- Windows Update: FAQ
- An update is available that enables administrators to update trusted and disallowed CTLs in disconnected environments in Windows
- Certification authority (CA)
- Certificate Revocation List (CRL)
- Root Certificate
- Digital Signatures
Delay, CertUtil, Setup