✅ – Every screenshot matches exactly what appears on screen. No guessing which option to check.
To prevent installation errors, crashes, or rolled-back installations, complete the following preparatory steps:
: Minimum 8 GB (16 GB is recommended for complex modeling). Disk Space : At least 80–100 GB of free space.
When choosing components, ensure you select (which includes HYSYS). Optional: Select Aspen Basic Engineering if required. Click Install Now . how to install aspen hysys v12
Note that HYSYS v12 can open files from older versions, but once saved in v12, they may require an XML export to be opened in versions earlier than v10.
If you have any previous AspenTech software (like Aspen V11) installed on your computer, you must uninstall it before installing V12 to prevent conflicts. Use the dedicated uninstallation tool located at C:\Program Files (x86)\Aspentech\Setup\Uninstall\PUninst.exe . Running this tool will remove all Aspen products, after which you should restart your computer before proceeding.
If the software is compressed in a ZIP or RAR archive, extract the files to a single, localized folder on your primary drive (e.g., C:\AspenV12_Installer ). Avoid deeply nested folder paths. Step 3.2: Run the Setup Wizard Navigate to the extracted folder directory. Locate the file named . Right-click Setup.exe and select Run as administrator . Step 3.3: Navigate the Custom Installer Menu On the splash screen, click Install AspenOne Products . ✅ – Every screenshot matches exactly what appears
Windows 10, Windows 11, or Windows Server (2016/2019/2022). Processor: Intel Core i5 family at 2.8 GHz or faster.
At least 80–150 GB of free space, ideally on an SSD.
If you do not have SQL Server installed, select the option to bundled with the installer. This configuration process may take up to 10 minutes to initialize and complete. Step 3.5: Finalize the Installation Execution Disk Space : At least 80–100 GB of free space
Solution: Aspen HYSYS relies on an active SQL server connection to run properties estimation. Ensure the SQL instance TEKLA or SQLEXPRESS is running in your Windows Services panel. Alternatively, reinstall SQL Server Express manually before running the HYSYS installation wizard.
Windows 10 (64-bit) Professional or Enterprise.
: Extract the installation package from its compressed format (e.g., .zip or .rar) to a local folder on your C: drive. Install Prerequisites
Remember: A successful installation depends 90% on proper preparation and only 10% on the actual installer. Do not rush. If you encounter persistent issues, consult AspenTech’s official support (if you have a subscription) or your institution’s help desk.