There is an increasingly annoying trend among many development tools nowadays to intentionally omit useful information when displaying an error message to the end-user. It has become a habit for developers behind many popular software, where they would actively try to hide such information from the user.
This also includes Microsoft products.
I don't agree with these kinds of desicions; and in contrast to what the product designers might perceive, I believe the actions to hide information to be a bad UX design.
While there might be several reasons as to why this might be useful (removing sensitive information, etc), I believe this is mostly done since most users do not really understand (or care to read) the actual error message, and/or lack the necessary skills to fix the issue.
Lazy users mostly just prefer to see a giant "reset to factory settings" button and click on it, whenever an error might occur.
This might be fine in some situations for users or setups that don't really matter, and companies are happy to oblige.
However, as a power user, I tend to prefer to get an actual explanation as to why a particular problem is happening, and actively try to fix it -- as opposed to blindly "reset" settings to default, or some other solution.
As many resources (including Microsoft's own answers page) report invalid, mundane, useless information in regards to fixing Microsoft products when an ADSI HRESULT error code has occurred (such as "Disable your antivirus and firewall", "Replace your network adapter", "Clear the cache", "Create a new user account", "Perform SFC and DISM scans", "Perform a Clean boot", "Try to Sign out and in again", or the worst offender, "Run the Microsoft Store troubleshooter" -- which never really works) -- it's likely that you'll never be able to figure out why a certain issue is happening, and fix it.
To me, it is stupid to come up with the solutions without actually investigating/debugging the issue and trying to figure out what is that went wrong. This is like throwing a dart in the dark, hoping to get results.
In many cases, the network adapter is fine, the state of all Windows files are in order, and the cache doesn't even impact the issue, at all. There might be an external factor to the issue involved.
To solve this issue, I've decided to compile a list of possible error codes that a user like me might run into, try to decipher each of the issues, and write in-depth explanations for each one, and how to solve them.