Gadgets are no longer available on our website because the Windows Sidebar platform in Windows 7 and Windows Vista has serious vulnerabilities. Microsoft has retired the feature in newer releases of Windows. Gadgets could be exploited to harm your computer, access your computer's files, show you objectionable content, or change their behavior at any time. An attacker could even use a gadget to take complete control of your PC. If you're concerned about the safety of gadgets you’ve downloaded, find out more about gadgets and steps you can take to protect your PC.
I use 8 Gadget Pack which allows the same functionality on later versions of Windows https://8gadgetpack.net/
The security issues mainly came about because there was no obvious difference to the user between installing curated gadgets from the gallery and ones found on random websites, rather than the technology itself. If you only use gadgets from trusted sources then there's no more risk than running any other application.Is that really something you want to recommend, based on the security issues described above?