So Microsoft is about to release a new version of the windows operating system. Yes, I know they all said Windows 10 would be the last version but soon we will have Windows 11!
The new operating system, as with all previous has a much higher recommended minimum PC spec. You can check to see if you PC is compatible by downloaded the scanning tool from https://www.whynotwin11.org.
There is no need to worry too much as windows 10 will be supported for another three or four years before you may have to consider buying a new PC if your fails the upgrade test.