I guess their Warrant Canary is very dead by now.
Microsoft has had a busy six months if its latest biannual digital trust report is anything to go by as law enforcement agencies crept closer to making 25,000 legal requests. Requests for consumer data reached 24,798 during the second half of 2020, up from 24,093 during the previous six-month period, and quite a jump from the …
Maybe they get a file name list from any user they want from w10 tools (you license it, not own it), and can remotely pull any data from W10 that you could locally. If that doesn't do it, they can ask goog/bing for a search history from your IP (duct tape, coliform, lye)
Had some fun with a W10 install in a non-network connected VM during the Easter days. Just playing around, and not being an MS user, wanted to have a look what all the fuss is about. That iso of W10 installed without any problems. However, when I wanted to clean it up a bit, like deinstalling One Drive (no net, duh!), Edge (no net, DUH!), things started to look less effortless. Sure, the icon disappears, but if you then run something like Piriform's CCleaner, it turns out that Edge is still started at boot. After you deinstalled it. That to me sounds very much like Google kind of practices, preventing $USER from hurting themselves and (gasp!) disabling telemetry...
BTW, another thing that I noticed is that, yes, the "shine" might look all new (if you're into that kind of click until you're dead, zillion sub menu obfuscation flatness), but the stuff "underneath" (e.g. regedit, diskmgmt.msc, secpol.msc, services.msc) do look very much identical to when I saw it last time, some 20 odd years ago. So why are some so offended by the polished turd, or if you will, turd with a shiny coating remark?
A new retail Windows install pushes you to have the username and password processed by Microsoft.
The local account option still exists, but is well hidden. Microsoft can be compelled to recover to the USA, anything Uncle Sam wants, even if it violates local laws. As people hand over the keys to the castle to Microsoft during install, thats almost everything on every domestic PCs sold in the last couple of years.
My understanding is the it will be the data collected during the operation of Windows and any Microsoft stuff, possible some others depending on their interaction with the OS & Microsoft.
It does not give them access to the actual data stored on the disk, if it is in OneDrive then probably not but with any cloud storage, who knows.
What is said or advertised is not the same as what may happen if a request for access comes from the right agency.