Error: Cannot open file C:/ProgramData/Unity/Unity_v5.x.ulf' for write.

Hey guys! I was changing some configurations on my PC when somehow i managed to corrupt some important files to my account and basically i lost everything (On that account, not the whole storage). I managed to get everything back, but now everyime i open Unity i get this error on the title. Unity is not being able to find the file Unity_v5.x.ulf on my drive. I've tried uninstalling and reinstalling, and Updating my engine's version but nothing seems to "create" the file. I have hidden files activated, and the file is just not there (It was deleted i guess)
I've looked on some threads and questions but i didn't find anything useful, and the only official fix doesn't work, because i don't even have the file to modify my permissions on it. Btw i am the Administrator on my pc.
I wish i could just create a ticket and send it to UT as i can do in basically any company in the world, but Unity is an exception unless i basically pay, so why not ask here...

Does anyone has the Unity_v5.x.ulf file to send it to me or something? I don't have any idea of how to solve this error.

 

I have just downloaded Unity 5.6.2f1 fresh (I have to use this particular version) and I am getting the same error message.

I can clear it and I think it is not (yet) causing any problems, but I would love to know what it is about...

Anyone?

 

Well, i hope you find a way to solve this, bcs i tried for 2 weeks with Unity's support team and guess what? Nothing bcs they are 100% efficient, of course. Anyway, best of luck.