Annuity death benefits are not often paid because most annuities are surrendered, transferred or annuitized for income prior to the death of the annuity owner or annuitant. The death benefit is often an afterthought, yet it is one of the more important components of the annuity contract.
To get to Disk Cleanup... Open File Explorer or My Computer. Right click the (C:) drive, and select Properties. The Disk Cleanup button is in the first tab that opens. This works in Windows XP and probably earlier, as well as on Windows 7, 8, and 8.1 - probably in Win 10 but I haven't tried that yet.
Select More Options in the Disk Cleanup window. Select Clean Up in Programs and Features to see a list of programs on your PC. Check if you can free space by removing any you no longer use. Right-click on a program to uninstall it.