If you don’t have any special software that can only run on Windows, forget Windows and use Linux.
If you have special video, image or audio editing software, or custom-built applications that only run on Windows, then run Windows as a NAT connected virtual guest on a Linux system, behind a solid Linux firewall.
Only connect the Windows guest to the internet once a month, just long enough to get the latest updates.
Actually, an isolated system does not need updates at all, unless one of KBs fixes a crash or something that you specifically are experiencing. Microsoft warns against applying hotfixes "just in case." But a service pack is just a collection of those hotfixes and patches. A lot of stability in Linux comes from the fact that the original system is lean, and the updates do not come with performance penalty. You can't say that about Windows.
I have win 8 and I just use this for visiting web sites, maybe watch a sporting event now and then.
How would I switch to Linux?