When making custom templates or file locations, keep them in new folder locations and add them to SOLIDWORKS Using Options > System Options > File Locations.
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When making custom templates or file locations, keep them in new folder locations and add them to SOLIDWORKS Using Options > System Options > File Locations. If you do not, they will be wiped on upgrades.
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Ensure that your custom locations are backed up via Google Drive, DropBox, etc.