Act! Blog

Upgrade Center Tab – Compatibility & 64-bit Architecture – UK

icon of a gear with a microchip

3

Compatibility with current business tools & modern architecture

Capitalise on the inherent benefits of today’s 64-bit hardware and operating systems – gaining full access to all available system memory for superior speed, performance, and scalability.

See it for yourself (2 min)

New 64-bit Architecture – Windows & Web

The latest version of Act! capitalises on the inherent benefits of today’s 64-bit hardware and operating systems – gaining full access to all available system memory for superior speed, performance, and scalability.

Multi-task, perform high-load functions, and support large files and data sets without memory issues via access to virtually unlimited RAM with a 64-bit native application vs. 4GB with a 32-bit application.

See the Top 5 Benefits of 64-bit Architecture

new 64 bit ico
windows 11 logo and office 2021 logo

Windows® 11 & Office 2021 Compatibility

Run the latest version of Act! on Windows® 11 for the latest usability and security enhancements from Microsoft®. Additional compatibility updates include support for Office 2021 and SQL Server 2022.

Your Act! subscription ensures ongoing compatibility with current hardware, software, and operating systems for maximum productivity and peace of mind.

Learn more about what’s new in Act!

Microsoft ended support for Windows® 10 on October 14, 2025.

As a result, Microsoft is no longer providing security updates, bug fixes, or technical assistance for Windows 10. Continuing to use Act! on Windows 10 after this date may result in increased risk of security vulnerabilities, data loss, or system errors; limited ability to troubleshoot issues; and lack of compatibility with future security updates or newer hardware. Learn more

To avoid potential disruptions, we strongly recommend upgrading to a supported version of Act! or moving to Act! in the Cloud. For additional information, and to check which version of Windows or Act! you’re using, click here.