Every day the available functions of the operating system are debugged for its correct startup and functioning, the possible compatibility with numerous applications and resistance to malfunctions and errors are checked.

However, not all available developments and applications are presented in the latest versions of the official update of the operating system “Windows 10”. Before the official release, all improvements are required to undergo preliminary testing and verification of performance. For this purpose, Microsoft has developed a special program of preliminary evaluation “Windows 10 Insider Preview”. In it, users are invited to test promising changes and improvements to the operating system “Windows 10” before their official release. Microsoft offers users, participants in the program “Windows 10 Insider Preview”, free to test and help identify all the problems in the new products, as well as to find out how interested users will be in possible changes to the operating system. For developers “Windows 10” is a unique opportunity to test the performance of novelties on different variants of personal computers of users. In case of malfunctions or system errors, developers will instantly receive all comprehensive information to correct the fault. If the new application under test passes the full test and confirms its viability, it will immediately become available for download and installation, as a new update of the operating system “Windows 10”, for other users who are not members of the special program of preliminary assessment of “Windows 10”. And you can be fully confident in its serviceability and functionality.

The “Timeline” function shows all open applications, files, web resources, documents, with which the user has previously worked, and allows you to immediately access them. It can also synchronize activities on “Windows 10” computers where you are working with the same “Microsoft” account, so you can pick up where you left off on any device.

This timeline feature is part of the “Windows 10” operating system update (“Windows 10 April 2018 Update”) introduced in April 2018. An important advantage of this feature is the fact that it can work with mobile apps, in case you log in to them with your “Microsoft” account. For example, if you open a “Word” text document on your “iPhone” or “Android”, the document will also be reflected in the “Timeline” on your personal computer.

This feature will be useful mainly for those users who work on multiple computers. Or in case there is a need to correct or complete any document or project at a time when you are not near your personal computer. With the timeline feature, any changes you make from another computer or mobile device will be available on the main computer.