Hey @Megha, software requirements for installing UiPath Orchestrator are as follows:
1. Windows Server: 2008 R2 SP1, 2012 R2, 2016
2. SQL Server: 2008 R2 Standard or Enterprise Edition, 2012 Standard or Enterprise Edition, 2014 Standard or Enterprise Edition, 2016 Standard or Enterprise Edition, 2017 Standard or Enterprise Edition
3. Virtualization Platforms: VMWare, Citrix XenDesktop - 7.6+, Oracle VirtualBox - 5.0+, Microsoft Hyper-V or any other platforms that can create a Windows Virtual Machine
4 .NET Framework: minimum: 4.6.1
5. PowerShell: 4.0+
6. WebDeploy: 3.5+ (64bit version), required only for PowerShell script installations.
7. Internet Information Services Manager (IIS): 7.5+
8. URL Rewrite: 2.0+
9. Elasticsearch: 2.3 - 6.x
10. Kibana: 4.0 - 6.4.2
11. Redis: 3.2.100 (Windows); 3.0.7 - 4.0.11 (Linux)
12. Browser: Internet Explorer (11), Microsoft Edge (20+), Google Chrome (50+)