Help me pls, Error trying to install

[Kingstoneros]

Trying to install plutonium at end the download appears this message, how i can solve it? is the third time thats appears me :c

i execute the .exe as administrator, with compatibility mode and whitout admin and compatibility

I dont have the mw3 in steam, i have a pirate version

[Mr. Android]

Please create a shortcut to plutonium.exe
Right-click the new shortcut and go to properties
Edit the Target field and add -timeout 600 to the path
Now try launching the shortcut. This should eliminate the timeout issues.