![]() You may encounter warnings or errors when you try to install or use applications or drivers that are only SHA-1 signed. How to tell if you are impacted by SHA-1 expiration Verify that you are using the latest version of your applications and if issues persist, contact the manufacturer. If your application is not SHA-2 signed, you might encounter issues or have to disable security warnings or security features to let the application run. If your application is SHA-2 signed, you will see SHA256 in the Digest algorithm column in the Signature list section. Select the Digital Signatures tab in the Properties dialog box. Right-click the EXE file and select Properties. How to verify your software is SHA-2 signedįollow these steps to verify your applications are SHA-2 signed:įind the executable (EXE) file in File Explorer for the applications that you want to examine. ![]() ![]() KB5003341: Issues you might encounter when SHA-1 Trusted Root Certificate Authority expires SummaryĪs described in Microsoft to use SHA-2 exclusively starting May 9, 2021, beginning at 4:00 PM Pacific Time, all major Microsoft processes and services-including TLS certificates, code signing and file hashing-will use the SHA-2 algorithm exclusively. ![]()
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