You have about a year before Windows 7 fades into history:
https://www.microsoft.com/en-us/wind...dows-7-support and that laptop isn't getting any younger, either.
Unless you're running some special software that needs Windows (and I don't mean Outlook) I'd suggest you start looking for an alternative to Windows. That would be get a Mac or get Linux.
Linux comes in many many versions but all of the popular ones are free, more bulletproof than Windows and boot faster and run more happily on a range of computers. I've been using OpenSuse for 10-15 years and my wife switched from Windows a couple of years ago, relatively painlessly. No more pain than it will take to move up from 7 to current Windows.
Microsoft has, or had, some great products and I've made money using them but we've reached the point that an unsophisticated computer user is at serious risk from all the evil things out there that exist because of the vulnerabilities in Microsoft software. Few Linux users even bother to use anti-virus programs because they don't need to. I wouldn't be surprised if much of your problem is malware running on your computer.