.NET Framework doesn't have anything to do with restrictions but that might resolve osu! crashing.
Before you install it, Try to check it first at "Control Panel > Programs > Programs and Features" if there is already there.
The required version of .NET Framework was 3.5 so if its lower then install it. But if its higher like 4.5, then no need for downgrading.
Before you install it, Try to check it first at "Control Panel > Programs > Programs and Features" if there is already there.
The required version of .NET Framework was 3.5 so if its lower then install it. But if its higher like 4.5, then no need for downgrading.