I upgraded to V5.4.5 build 170123, used the one Alastair linked in his first post.
My cameras are Chinese, they had initially different firmware versions.
The files can be accessed in virtualized drive tree located here:
C:\Users\[user name]\AppData\Local\Microsoft\Windows\Temporary Internet Files\Virtualized\
Alastair you are a legend, you saved me so much frustration, big thank you. I managed to upgrade:
DS-2CD2332-I
DS-2CD2032F-I
DS-2CD2032-I
One of them was bricked.