Ista 4.39.20 Install ◆ «Fresh»

| Requirement | Minimum | Recommended | |-------------|---------|-------------| | OS | Windows 10 (64‑bit) | Windows 11 (64‑bit) | | RAM | 4 GB | 8 GB | | Disk Space | 2 GB | 4 GB | | .NET Framework | 4.7.2 | 4.8 | | Administrator rights | ✔️ | ✔️ |

| Requirement | Details | |-------------|---------| | OS | Windows 10 Pro (64-bit) or Windows 11. LTSC versions preferred. | | RAM | Minimum 16 GB (32 GB recommended) | | Storage | ~180 GB free (full SDP/Data) / ~60 GB (lite install) | | User Account | Local Administrator rights. No spaces in Windows username. | | Antivirus | Disable real-time protection (Windows Defender, McAfee, etc.) | | Language | System locale: English (US) – non-Unicode programs set to English. | ista 4.39.20 install

⚠️ Do not install in C:\Program Files or C:\Program Files (x86). Use C:\ISTA or D:\ISTA. ⚠️ Do not install in C:\Program Files or

Create a folder like C:\ISTA for installation (avoid spaces).

Set system locale to English (US) to prevent SQL sorting errors.

ISTA 4.39.20 has built-in drivers for the following interfaces: Create a folder like C:\ISTA for installation (avoid

Accept the license agreement; note that the EULA permits internal use only.

Choose the installation directory (default C:\Program Files\ISTA).

Select start‑menu shortcuts and whether to create a desktop icon.

Click “Install” – the progress bar shows component extraction, .NET checks, and service registration.

Finish – a final dialog offers to launch the GUI or reboot. Reboot is optional unless you installed the HIL driver, which registers a kernel‑mode service.

| Component | Minimum | |-----------|---------| | OS | Windows 10 Pro 64‑bit (LTSC recommended) | | CPU | Intel i5, 2.5 GHz+ | | RAM | 16 GB (32 GB better) | | Storage | 250 GB SSD (for installation + data) | | Display | 1920×1080 | | .NET | 3.5 / 4.8 | | Database | SQL Server Express or full SQL (ISTA installer usually includes) |