all user vs all users

Some examples from the web:

• To meet all user needs four menu options are displayed for swift and intuitive navigation.
• Note: We do not recommend that you attempt to build LilyPond yourself; almost all user needs are better met with the pre-built version.
• We recognise the importance of providing a website that is inclusive and available for all user groups.
• Elliptical cross trainer with natural movement, suitable for all user groups
• We could therefore think that finding a common denominator for all user to convince them to share a cause in a social network could actually have a negative effect on activism and a stronger engagement of activists who try to involve single persons.
• Rhino 5.6 allows you to select whether you want to install for one user or for all user on the computer.
• The ESS (European Statistical System) needs to develop further its structures and strategies to ensure that the system as whole maintains and develops the necessary quality and effectiveness to meet all user needs.
• Here you can: Allow all user to add you to their contact list (the field 'All users may add me to their contact list' is checked).
• Retrieve all user ID and password instantly.
• Monitors all user accounts on a Mac with only 1 license key.
• Innovative user interface The SmartSurface makes intuitive operation possible for all user groups.
• Download Key Logger software to monitor all user activities on computer system.
• (24a) Member States should introduce single information points for all user queries.
• the market, all user railway undertakings
• The directive applies to all user undertakings engaged in economic activities whether or not they are operating for gain.
• If you choose noninteractive out of the choices, all user interaction is disabled.
• Software monitors all user accounts including guest user.
• It contains a random identifier rather than all user data specific.
• Not all user agents may render all seven sizes.
• But there are more advantages considering the potentiality deriving from the control of all user experience.

Some examples from the web:

• Deliver notifications to all users mentioned in the comment.
• The new package is available to all users.
• The investigation showed that all users maintain various sources of supply.
• For all users, new methods of working and changes to work flow will become essential.
• It is possible to do the same with files common to all users (by calling/etc/bash.bashrc from/etc/profile).
• Now it's matches new Microsoft standard SHA256. Installation recommended for all users.
• To allow that, all users have clearances for all data.
• The new version of Opera for Android still rolls out to all users.
• The headrest allows all users to be comfortable, adults and children.
• Freenom provides free domain name registrations to all users on the internet.
• In general, all users may visit this Site anonymously and without revealing any personally identifiable information.
• Not all users have such clear ideas as Mario Rossi.
• The service will be free to all users of its email program Gmail.
• Users/ Customers: Displays all users, connected to a computer, and their condition.
• If enough SPAMfighters report the same spam mail, it is removed from all users.
• With these features, our magnetic exercise machine enjoy a great popularity among all users.
• Facebook often claims that all users have consented to the use of their personal data.
• The plugin perfect for all users of SkyDrive.
• The/admin option installs for all users on the computer.
• Monitor and review the work of all users using the integrated audit function.