Microsoft was working on a "sets" feature that would provide tabbed file explorer and other applications. Sets did not arrive in the October 2018 update and are now out. However, you can get tabs in File Explorer today.
Install Stardock's Groupy
Stardock offers an application called Groupy, which adds a feature such as sets to Windows today. It's a paid app that costs $ 10 alone, but Stardock offers a monthly free trial. It is also included in the Object Desktop suite by Stardock.
Like the Windows feature that Microsoft has worked on, Groupy adds tabs to many different applications. You can even mix and match applications by merging tabs from multiple applications into a single window. You can drag and drop windows on the tab bar to turn them into tabs, or you can drag tabs away from the toolbar to turn them into separate windows, much like working with multiple tabs and windows in your browser.
Like Stardock's other software This is a polished experience. Stardock updated it and released version 1.2 on May 7, 2019. It also runs on Windows 7, Windows 8.1 and Windows 10, so even users of Windows 7 can use this feature.
Microsoft's SmartScreen once blocked the groupy download for us, but VirusTotal says the file is fine and Stardock has been a trusted company for years. If you receive a SmartScreen warning when downloading and installing Groupy, you can ignore this.
Using Alternative File Explorer
Instead of using a program that adds tabs to all your system's applications, you can simply install and use an alternate file manager. These use the same file and folder views that are used in File Explorer and Windows Explorer, so everything works similarly. However, third-party file managers build their own interfaces on the default view of File Manager, and many of them contain tabs.
We like the free, open source and lightweight application Explorer ++, which runs on Windows 7 through Windows 10. It has a customizable interface, but the tabs are our preferred feature.
The same keyboard shortcuts that you use with the tabs in your web browser also work with Explorer ++. You can press Ctrl + T to open a new tab, Ctrl + W to close the current tab, Ctrl + Tab to move to the next tab, and Ctrl + Shift + Tab to move to the previous tab.
Removed: Upgrade to Redstone 5 for Tabs Using the Official Sets Feature
Update : This feature has been removed and is no longer available even with unstable insider builds of Windows 10.
RELATED: should be used The Windows 10 Insider Preview
The official support for the File Explorer tabs is currently available as part of the Redstone 5 Insider Preview Builds available. You can upgrade to them and get this feature before it is officially launched in late 2018.
Warning : It is not recommended to run Insider Preview builds on your default PC. They are technically unstable, so system problems could occur.
If you encounter problems with these builds, you must either downgrade within 10 days or reinstall Windows 10 to return to the stable version. However, you can upgrade by going to Settings> Update & Security> Windows Insider Switch program and then enable Insider Preview builds. This will only work after the April 2018 update, codenamed Redstone 4, was officially released on April 30th. If this has not already been done, you can only upgrade if Microsoft currently gives users the option to skip Redstone 5. 
After the upgrade, you can open the File Explorer window (or many other applications) and use the new Function Sets. The keyboard shortcuts work like the standard shortcuts that you use for tabs in your Web browser and other applications, but also include the Windows key. For example, press Ctrl + Windows + Tab to go to the next tab, and Ctrl + Windows + Shift + Tab to go to the previous tab. Press Ctrl + Windows + T to open a new tab and press Ctrl + Windows + W. to close the current tab.