Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete

Products

• Desktop Email Encryption
• Drive Encryption

Issue/Introduction

Unable to install PGP Desktop on Windows 7.

Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete

Resolution

Use the following steps to resolve this issue:

1. Click Start > Control Panel.
2. Click on User Accounts...
3. Select the User Access Control option.
4. Set User Access Control to Never.
5. Re-start the computer.
6. Start the installation using Run as administrator option.