Windows 10 is under attack over default settings which users say compromise their privacy, just days after the operating system’s successful launch saw more than 14 million installs in the first 24 hours.
Hundreds of commenters on sites such as Hacker News and Reddit have criticised default settings that send personal information to Microsoft, use bandwidth to upload data to other computers running the operating system, share Wi-Fi passwords with online friends and remove the ability to opt out of security updates.
Many of the complaints relate to the new personalised adverts embedded in Windows 10. When the OS is installed, Microsoft assigns the user a unique advertising ID, which it ties to the email address registered with the company. That email address is also associated with a raft of other services, such as the company’s productivity and communication programs, as well as app downloads and cloud-storage uploads.








