Open MalwareTips in Safari and tap Share. You may need to open the Page Menu first.
Choose Add to Home Screen. If it is not listed, use Edit Actions to add it.
Keep Open as Web App enabled if shown, then tap Add.
Android
Open MalwareTips in Chrome or another browser that supports app installation.
Open the browser menu and look for Install app, Install and create shortcut, or Add to Home screen.
Choose Install and confirm. Wording varies by browser.
Desktop
Chrome: use the install icon in the address bar, or the menu under Cast, save and share.
Edge: open the menu, then More tools, Apps and Install this site as an app.
Safari on Mac: choose Share or File, then Add to Dock. Firefox on Windows: look for the web apps button in the address bar.
If you cannot find an install option, update your browser or use its bookmark option to keep MalwareTips close.
Keep up with your conversations
After installation, open the app and sign in. Enable push notifications in Preferences if you want alerts. On iPhone and iPad, push requires a Home Screen web app and iOS or iPadOS 16.4 or later.
Although you didn't specify if this was a general question or if it was happening to you, the first steps would be to:
1). Check the Event Viewer.
2). Run the ShellExView utility to determine if any 3rd party software installed anything that is screwing with your system. It is found here: http://www.nirsoft.net/utils/shexview.html
If it happens when you open a folder, right click on a folder or file then it is probably a corrupted context menu item causing it.
ShellExView can help you remove items that could be corrupted or not needed.
As you install programs many will add context menu items without letting you know.
Too many context menu items will bloat up and cause Windows Explorer problems.