I have a old computer and try to test the new Radeon crimson, install version 16.2.1 without problems, but I can not update to 16.3.2.
I send you all the information that may be causing error.
Monitor: Samsung S19D300D
CPU: AMD Phenom II X2 555 Black Edition
GPU: XFX Radeon HD 6450 1GB
Your old GPU is most likely not supported with newer drivers.