They are security updates. It should be updated, you can get rid of the old files so they do not take up space. Remember that support for Windows 7 ends in 2020. If you plan to continue with Windows 7, updates will continue to be offered and you can accept them or not, but it is at your risk. Many hackers manage to take control of PCs without these updates. With Windows 10 they are required.
Dear Salvador, Thank you first of all for your prompt response. Look, maybe I didn't express myself correctly. I have seen the link you sent me and it refers to the updates I already have installed. My query (I reiterated most likely I was not clear with my previous query) is that I do not have them installed, on the contrary in the lower bar, on the right margin I get a notification that says for example: You have 5 important updates to install, and below for example 54 optional updates. But at no time did I install them. What I do?