Can't remove locked files following installation

Hello,

I installed Windows 7 64-bit on my PC. No problems, except for a bunch of strange, locked files that appeared on one of my drives. I don't know where they came from. I don't know how to remove them. I don't know if they're important or not.

I would click on them, and it gives me a bunch of files that have numbers on them (see picture url below), when I open that, it says "I don't have permission to access this folder". It tells me to gain access to this folder I "will need to use the security tab". I click on the security tab > continue, and then I am not sure what to do.

Screenshots here:

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They are install folder you need to take ownership of the folders we have a guide and tool for that Add Take Ownership to Context Menu in Windows 10 User Accounts Tutorials

Okay thanks guys, will do as recommended.

The take ownership didn't work for me, so I just downloaded Windows Unlocker, and was able to delete all those files.

Thanks for your help!