Used Opera for many years, most recently on Win 7 and 8 PCs. Recently did the free upgrade to Windows 10 (and so far, regretting it - way too much hassle with permissions etc), and at first Opera continued to work OK.
Problems started 2, maybe 3 days ago - clicking the Opera shortcut in the Start Menu did nothing at all; it was impossible to start Opera by ANY means using the existing installation (which was updated to whatever was current at that time).
Uninstalled Opera using the correct utility, making sure that everything that needed to go really had gone - intention being a new 'fresh' instal.
Downloaded (several times now) the current version of the Opera installer (Operasetup.exe) version 39.0.2256.43 ... double-clicking the file OR right-click / run (even as Administrator) do absolutely nothing - Task manager indicates that the executable does not even start!
I've since stripped the PC of every remnant I can find of old Opera installations (including the Registry), rebooted and tried to install again (several times, each time with a newly downloaded executable), and Opera will simply NOT install, no way no how!
Nothing in my AV software (VIPRE) is preventing me from installing (and neither is anything else that I'm aware of), and the problem persists across several accounts on the PC, with and without Admin status ... nothing in permissions or ownership indicates any problem either.
In short, NOTHING I can do will so far allow me to do a new installation of Opera onto a fairly new PC, perfectly capable of running Windows 10 (that has run Opera quite happily until a few days ago).
No hardware changes or issues, and no recent sneaky Microsoft updates either to screw things up (unless they've found a new stealth mode I know nothing about!)
This SHOULD be so easy and straight-forward ... anyone out there have any constructive help please? ... I'm not exactly dead in the water as Firefox, Chrome and Edge are all currently playing together nicely ... but I'd really like to get Opera back again ASAP!