This has to be said over and over and over again: Windows 7 is end-of-life'd. It is extremely unwise to continue using it in an internet-facing capacity.
Learn about end of support for Windows 7 and find out what you need to know to upgrade Windows or find a new PC.
support.microsoft.com
If you need to breathe new life into an older system and you need to do the basics (but would prefer to do the basics more privately, securely, stably and efficiently) use any one of the myriad Linux-based OS's out there.