Microsoft seems to be preparing last-gen Windows users for the coming of its latest offering, the Windows 10 operating system. 

The Redmond-based computer giant released a "recommended" patch, with a link to KB3035583 appearing in the Windows Update. According to Slash Gear, the recently released update for older Windows editions like Windows 7 and Windows 8.1 "enables additional capabilities for Windows Update notifications when new updates are available to the user." 

Although the description of the latest Microsoft update seems to be very typical among all the other updates from the tech giant, the update files as well as a particular GWXUXWorker.exe found in System 32 could reportedly allow users to "Download Windows 10" ultimately. This means that the very simple and quiet update also serves as a possible Windows 10 notifier and downloader. 

Windows users can also discover a config XML file that can infiltrate the behavior of the program, based on the current "phase" of Windows 10. This can be seen when the program does not display any type of notification or act since the system is still in the "None" phase. But when it eventually reaches the "RTM" phase of Windows 10, users might find a new Live Tile that will pop up in the Start Screen. This could signify the launching of the highly awaited operating system. 

Meanwhile, PC World reported that another unofficial Windows 10 preview build was leaked online. This time, the new leak shows that the previously absent Google Calendar is now included in the Calendar app of the operating system. According to the report, the new app can perform faster than its Windows 8.1 counterpart, but looks somewhat similar to the previously released universal Office app.

Windows 10 is expected to be released this summer.