Installation files are not signed
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Installation files are not signed

Back to "Installation errors"
Latest update: 2019 Apr 24 ID: 11004
 
 
 
 

When installing a Kaspersky Lab product, you may receive the error message Installation files are not signed.

Malware can cause this error by installing antivirus products’ certificates in the Untrusted Certificate repository. This prevents antivirus programs from installing and launching.

 
 
 
 
 

Check for Kaspersky Lab certificates in the Untrusted Certificates folder

 
 
 
 
 

Check the digital signature of the installer

 
 
 
 
 

Check the system date on your computer

 
 
 
 
 

Define Software Restrictions Policies settings (Windows XP/Vista)

 
 
 
 
 

Contact Technical Support

 
 
 
 
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