Hilton Hotels & Resorts (formerly known as Hilton Hotels) is an international chain of full service hotels and resorts and the flagship brand of Hilton Worldwide. The original company was founded by Conrad Hilton. As of 2010, there were over 530 Hilton branded hotels across the world in 78 countries across six continents. Hilton hotels are either owned by, managed by, or franchised to independent operators by Hilton Worldwide.
3. Scan for Malware. Another significant source behind not working of Windows Defender is the presence of any malware on your computer. A proper and thorough scan are required to find out them. The most used tools are the MalwareBytes Anti-Malware and Microsoft Safety Scanner.
Windows Defender in Windows 10 and Windows 8.1 is built into Windows and ready to work as soon as you turn your PC on. Microsoft Security Essentials works on Windows 7 and Windows Vista. You can download it from the Microsoft Security Essentials website. Before the release of Windows 8, Windows Defender was a separate tool for antispyware. This tool is no longer supported, as it is now fully integrated into Microsoft Security Essentials (in Windows 7 and Windows Vista) and Windows Defender (in Windows 10 and Windows 8.1).