If you are going to do a clean install (wipe the drive) of Linux Mint, you could also do a clean install of Windows. That would probably fix your update problem. But I agree with your decision to go with Linux Mint.
I use Linux Mint 18.2, and I really like it. I have installed VMWare Workstation Player, and this software allowed me to install Windows 7 and Windows 8.1 as virtual machines. This means that I can still run Windows - either 7 or 8.1. Windows is just a click away.
If you have any interest in doing this, you will need to add memory to your computer -- 2 GB is simply not enough for this sort of thing. I manage with 4 GB of memory. My Windows 7 virtual machine works well with 4 GB, but my Windows 8.1 virtual machine is a bit slow. If you can go higher than 4 GB, that will be better.
There will likely be some things you won't be able to do in Linux. I find it very helpful to be able to get into Windows with just a click, so that I can do those things. An example of this is Microsoft Movie Maker. So far, I haven't found an equivalent program in Linux. So when I need to edit a video, I open my Windows virtual machine, edit my video, save it, then close the virtual machine. Scanning is another thing. You may not be able to get your scanner to work in Linux. If this is the case, then it would be very handy to be able to run Windows in order to be able to scan. It took a lot to get my scanner to work in Linux Mint 18.2; however, the scanner worked immediately in Linux Mint 19.