Consequently, the entire Ubuntu family suffers, and Kubuntu is no exception.
All that said, I decided to upgrade the Zesty instance on my Nvidia-powered Pavilion laptop, to see whether my experience was going to be any different from the afore-linked lukewarm and mediocre product called Aardvark tested on the likewise Nvidia-powered LG RD510 laptop, which also happens to be a year older than the HP box. As you probably recall, I think Kubuntu 17.04 is one of the best distributions ever released, near as perfect as it makes no difference.
It took about two hours to complete, but complete it did and without seemingly any errors from the invocation of the upgrade wizard tool to the very end.
Nvidia drivers were working fine, Steam was working fine - it needed a rebuild of some of the cached libraries, but then it launched without any problems. It will also help me understand better what kind of foobar we're dealing with.Ubuntu in-vivo upgrades have been relatively safe and painless in the past several years, and this attempt was no exception.How-To-Geek also provides some information regarding MD5SUM reading material or Cygwin can be installed and UNIX utilities used instead.
Open the Terminal app, then navigate to the directory where the ISO is saved.
Doing this will ensure that your download is complete and that it has given you a fully working ISO to boot, which can be later installed from.