Aspire Z3-605 WIN 10 update installer tried unsuccessfully to install a new version

I have the same problem, although after a days worth of work, I was able to restore the system with the "last known good version" of Windows 10.  I suppressed all updates until my critical work was done.  Then, about 2 weeks later, without work computer was left on its own for 24 hrs connected to the internet. It finally updated and resumed normal function - rebooting for an hour about 3 times.  I didn't go back to Windows 8 - unfortunately ACER support still lists the system today as Windows 8 even though the system automatically upgraded to Windows10 the minute we powered it on. 

So the last update that occurred about 3-4 weeks ago resulted in another glitch.  The audio driver was lost after the update and I had no sound for 3 weeks.  Again, once I had my critical work done and spent a whole afternoon to do some research on the subject, I was able to find Realtek's company website in Taiwan, http://www.realtek.com.tw/downloads/downloadsView.aspx.  On that, I was able to locate the Realtek High Definition Audio Codec driver executable for 64-bit OS.  I downloaded it and ran the .exe to re-install the driver, and the sound came back on even before I restarted as recommended.  So the long and short is ... I hate the inefficiencies artificially imposed on the user of all Microsoft Products, in particular by their idiotic update process - all versions of consumer Windows OS included.  I was unable to move way from it at home as my work with large corporations and the government meant I needed to remote log on with a Windows computer.  The sheer amount of IT resources needed to keep a Windows OS functional ... which is like a full day every 3-6 months for debugging or running to the store to get some patching software.  And it was all done to forced the consumer to keep paying it more, i.e. a racketeer scheme.  I have several old ACER products that I was attached to but I will wipe them clean and install LINUX because I think it's a stupid waste of money and environmental resources to have to buy ever more loaded computers just to run an inefficient and evil operating system with its horrifying updates.