We have just uploaded two new Windows installation packages for version 1.8.8-3 of PixInsight (packages released 2019 December 16) to our
software distribution system. By installing these new packages there should be no problems to execute PixInsight 1.8.8-3 on Windows 7 SP1 and Windows 8.1, just as the previous 1.8.8-2 version.
We have made these changes for the convenience of our users. However, please note that Windows 7 and Windows 8.1 are not supported officially by current versions of PixInsight (since core version 1.8.6, released December 2018). We test the Windows version of PixInsight on Windows 10 exclusively, so this is the only version of Windows that we can claim to support.
