A friend of mine had the same issue, he had his game installed at the root of his C drive. he managed to solve it by installing RageMP inside "C:/Program Files" directory. NOT "Program Files(x86)" and then running ragemp launcher as admin!
Steps:
- Delete your current RageMP directory, wherever it is.
- Reinstall RageMP(via the installer that you download from the site) in C:/Program Files.
- Run RageMP(in admin mode)
Should work ^^