Is there a way to manually remove 4.3.11 so that 4.3.12 can be installed? The 4.3.12 installer says it removed prior version, says preparing to install, then after it says it's installing, an error comes up saying it can't find c:\program files\paint.net\staging\paint.net_X64_1403115701.msi and my only option is to cancel the installation and 4.3.11 launches, Please help..!!!!