missing options 'extract' and 'extract here' from Explorer

Jun 29, 2018
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I have just loaded my copy of Windows 7 pro onto a new machine (the last one died of old age) (yes, I know the OS is old, but I like it and I have legacy software that will not run on Win10) I used to have the option of right clicking on a file in Explorer (usually a RAR) and using the 'extract here' or 'extract' options which was very useful to see part of a large multi file RAR, and check whether I actually wanted to download the lot or not. However, that option is missing from the new build - can anyone tell me how I can get it back?