By default, the option to scan files with your ESET product is displayed in the context menu when you right-click a file. If this option is not available, you can enable it from within your ESET product.
Alternatively, you can drag-and-drop files to scan in ESET version 11 and later home products. Scan a file or folder manually by moving the file or folder to the marked area in the Computer Scan window.
Press the F5 key to open Advanced setup.
Click User Interface, verify that the slider bar next to Integrate into the context menu is enabled and click OK.