In general, File Explorer keeps opening results from the following causes. You might have scanned for the virus, but nothing found. When you type something on your document, File Explorer keeps popping up, interrupting your typing. Have you ever experienced this kind of thing? Every time you try to close File Explorer, it keeps opening automatically.
Open Control Panel > choose AutoPlay > uncheck 'Use AutoPlay for all media and devices'. Run cmd as administrator > type sfc /scannow and hit Enter. Press Ctrl + Alt + Delete to open Task Manager > click Details > select explorer.exe.
