Verifying Package Integrity Using MD5 Checksums or GnuPG Figure 2.4 Kleopatra: The Decrypt and Verify Files Dialog Figure 2.5 Kleopatra: the Decrypt and Verify Results Dialog: All operations completed 109 Seeing a red  The signature is bad  error means the file is invalid. Do not execute the MSI file if you see this error. Click  Decrypt/Verify  to check the file. The two most common results look like the following figure; although the yellow warning may look problematic, the following means that the file check passed with success. You may now run this installer.