[error] Error installing VirtualBox 4.1.8

[JwGT]

I'm trying to update my VirtualBox, however when it comes in the "coping new files" the installer reports the following error:

vboxerro.png (39.31 KiB) Viewed 445 times

I was using Windows XP today, and I returned the same error. Now in Windows 7, I downloaded the installer again. The same error was returned = /

Any solution?

PS: Forgive me for spelling errors, I am Brazilian and am translating via Google Translate lol