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This web site contains sexually explicit material:If error 0x7101 appears immediately upon launching the software (before any design is loaded), the "Link" refers to the USB license key.
Go to > Privacy & Security > App & Browser Control .
Many users resolve this by executing a specific .reg file often named "RemoveLDK" or "ldk.reg" provided by their software vendor.
For a step-by-step visual guide on fixing the Sentinel LDK internal error in Wilcom EmbroideryStudio E4.2: 01:31