Microsoft rolled out of Windows 10 October 2018 Update, however Microsoft has stopped distributing this update that has a possibility to cause a problem to your computer.
After applying this update for existing Windows 10, some Windows users reported that the files in the document folder were deleted.
For users who have installed this update, JASCO recommend to uninstall the update.
Since JASCO Spectra Manager and ChromNAV software does not create data files in the document folder normally, JASCO data files are not affected by the problem.
However, for users who have specified JASCO data folder in the document folder, please confirm if JASCO data files are remaining, and then uninstall the update.
Microsoft has already released fix for this problem. The fix is rolling out to Windows Insider Program users first. More Information can be found here: