Installing Windchill Risk and Reliability > Enterprise Edition > Installation Overview > Server Requirements
Server Requirements
The following table provides minimum recommended requirements for the computer on which the Windchill Risk and Reliability desktop application is installed. This computer is referred to as the application server. The person who installs or updates Windchill Risk and Reliability must be a Windows user with full administrative rights.
Specification
Minimum Recommended Requirement
Processor
A 4-core processor
* 
The minimum recommended requirements for the processor, RAM, and hard disk depend on the total number of simultaneous users. Requirements given here are for 1 to 50 users. For more information, see “Server Requirements Based on Simultaneous Users” in Hardware Sizing Guidelines.
RAM
6 GB
Hard Disk
150 GB
Display
1024 x 768 pixels, 16-bit color
Drives
Access to CD-ROM drive if a CD is obtained for the installation
Operating System
Windows Server 2016 or Windows Server 2019
* 
While installation on 64-bit computers is supported, Windchill Risk and Reliability runs as a 32-bit process.
Database Server
• SQL Server 2017 and 2019 (including Express versions)
• Oracle 19c
Web Server
IIS 7.0 or higher on the computer to run Windchill Risk and Reliability Web Services. For more information, see IIS Requirements for the Web Server.
Application Platform
If not already present on the application server, the Setup program installs the following third-party software:
• Microsoft .NET Framework 4.8
• Microsoft Data Access Components (MDAC) 2.8
• Microsoft JET Database Engine 4.0
• MSXML 3.0
* 
After installing third-party software, you may need to restart the computer before continuing installation of Windchill Risk and Reliability.
Mail System
SMTP-compliant mail sever if using alerts or workflow messages