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PVsyst starts in trial or demo mode after registering Windows

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In PVsyst 6 the license activation is partly based on the "Windows Product ID" of the host computer.

However the Windows Product ID changes after the Windows registration (PVsyst will not accept the license and start in trial or demo mode). So please register your Windows copy before activating PVsyst.

But if it happened (you registered Windows after activating PVsyst), please contact us at admin@pvsyst.com.

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