How to hide purchased app history without a mac pc?

I don't have any mac pcs and I hate scrolling through my apps that I've gotten to find a certain one I'm looking for and some of my apps are embarrassing like period help and things like that

"hide purchased app history without a mac?"

Do you mean iPhone / iPad purchases in iTunes Store?
If so, no. Not only does iTunes show all apps you have downloaded, but those same apps are stored on the startup drive volume for anyone to see at…
C:\Users\Username\My Music\iTunes\iTunes Media\Mobile Applications\

If your fiends want to listen to your iTunes Library, create a new user account for "Friends", log out, log in as "Friends", and then add songs to iTunes.

For how to create a new user account, see the Microsoft article at the link below. It is not actually as secure as a Mac / Linux / UNIX admin account, but it's the best you can do with Windows.