Windows 7: Removing Old Program Files

I have these files (renamed hi) that were from when I installed Windows 8.
How would I go about doing so?
These files are program files, program files (x86), program data, and perf logs

It appears they are all on your "D" drive, so just delete them in the usual manner.

HTH

No but that doesn't work. It won't let me delete them. Also the "D" drive is just a partition of the C drive.
Thirdly, I need that drive because as you can see, it has Lenovo files that I need for my computer

When you try to delete them, what happens? In other words, is there an error message and what does it state? I never said to delete the "D" drive partition, only the folders you want to remove.

It says I need permission from TrustedInstaller

It says I need permission from TrustedInstaller

Try the following link for a solution;

Windows 7 – How to Delete Files Protected by TrustedInstaller

HTH

It says I require permission from Administrators to make changes to this folder.

It says this when I am trying to delete this folder, also I am admin, and am signed in to the admin account

Visit the following link for help with the new problem;

Add "Take Ownership" to Explorer Right-Click Menu in Win 7 or Vista - How-To Geek

HTH

Wow, that worked!

Thanks So Much!