Return of Reckoning

Hi.
I'm having this problem with the launcher:

Error starting: System.UnauthorizedAccessException: O acesso ao caminho 'C:\Users\Vitor\Desktop\Warhammer Online - Age of Reckoning\WAR.exe' foi negado.
em System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
em System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
em System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy)
em System.IO.FileStream..ctor(String path, FileMode mode)
em RoRLauncher.Client.patchExe()
em RoRLauncher.Client.Handle(PacketIn packet)

Somethings are in portuguese so here's the translation:
"em": in
"O acesso ao caminho": access to pathway (maybe)
"foi negado": was denied

Some of the files got corrupted in the installation, maybe it's related

If someone could help me, i would be grateful.
Thanks.

Thanks Tiggo, but i already saw that topic and it not helped.

I fixed that problem, but now i have another. In the instalation, the client z07 has been corrupted, and now i cant extract data.myp archive.