- Sun, 14 December 2025
Select "Install Products" and choose "I have a license file" or "License Server" (Students: choose "Standalone" or "Authorized User").
The installer will attempt to install SQL Server 2019 Express. Do not close this window. It takes 10-15 minutes. If it fails, you must manually install SQL Server prior to retrying. how to download and install aspen hysys
Click Install. Go get a coffee. This takes 30–45 minutes. Phase 4: Post-Installation & Licensing Once the installation finishes (Do not reboot yet if the license setup is pending). Select "Install Products" and choose "I have a
Windows Defender or McAfee will quarantine the license patcher. Disable "Real-time protection" until the reboot. It takes 10-15 minutes
HYSYS is allergic to spaces. Go to Settings > About > Device Name . If your PC is named "John-PC," you are fine. If it is "John’s Laptop," rename it to "John-Laptop" and restart.
Search for "UAC" in Windows. Drag the slider to Never Notify . Restart your PC.
Run 0_Prereq_Check.exe from the installer folder. Install .NET Framework 3.5 and Visual C++ Redistributables first. Phase 3: The Installation Walkthrough Mount the ISO (right-click > Mount) or extract the zip file. Run Setup.exe as Administrator .