Posted by K.J. Kroeker on 03/11/2021 23:54:54:
You can install Thunderbird on your new PC if you leave "S" mode. S mode allows only applications from the Microsoft store. If you leave S mode, you cannot go back – you will be in standard Windows 10 and able to run anything you like.
S mode is touted as a more secure solution since applications from the Microsoft store are thoroughly vetted by Microsoft.
Well worth investigating. This link is to Microsoft's description of S mode and explains how to switch it off.
Comment:
Part of Microsoft's poor reputation for security stems from allowing Windows users to install any old rubbish from the web. Quite a few hopeless optimists and babes in the wood out there!
Unfortunately, on the web, malware is mixed in with good stuff like Thunderbird and it's not always easy to tell good from bad. One solution is to install security software and check downloaded code looking for viruses, worms, ransomware, bots, and other nastiness. (Essential on Windows.) Another is to configure the operating system to only download software from a reputable source, like Microsoft Store.
Microsoft Store is double-edged in my opinion. It's primary purpose is to make money. As well as charging fees when appropriate, it also collects and sells the customers personal information. I'm uncomfortable with that and suspect many only provide personal because they don't comprehend just how easy it is to cross-reference and misuse information.
I'm happy to turn off S-mode and take responsibility for whatever I install. It means being careful and suspicious: optimism forbidden! I minimise installs and don't play with Shareware and other free sources. I only download software from the owners website, not any of the 'we find software for you' sites, because they may be playing a game.
When an install fails it's tempting to try other packages. OK, but it can lead to installing several different nasties in the search for one that works. Better to start by looking for whatever is stopping a reputable package like Thunderbird from installing. It could be a simple tickbox: S-mode or an anti-virus package set to block installs unless the user deliberately unlocks the door.
Dave