1. This version of Windows has typos in some of its programs, such as "Windows Calendar" being misspelled as "Windows Calender," and many grammatical errors in Windows Mail's Welcome message, such as "in that newsgroups" instead of "in that newsgroup," and "Windows Media Center" being misspelled as "Window Media Center" in the Help and Support Center.
2. The RTM of this version of Windows (i.e. build 6000) was actually the build of Windows Vista that faced the most criticism.
3. Booting this version of Windows using Windows 8's boot manager or newer may result in a 0x0000001E Stop error screen. Booting it using Windows Vista's boot manager or enabling Kernel Debugging will fix this issue, however the operating system might freeze more frequently if Kernel Debugging is enabled.