Is there any solution on how I could rearrange my virtual desktops in the task-view (WIN+TAB)?
This is not yet possible on Windows 10, but the best way to encourage the feature change would be to vote for it on Microsoft's Feedback Hub:
https://aka.ms/Kpdo3c (link should open the Feedback Hub)
(at the time of this posting, 2018-02-22, it had 1,188 upvotes)
There are also a few related virtual desktop enhancement requests in there as well. It never hurts to voice what's important to you for a feature.
Update: As of the 2018 April Update ("Spring Creators", and introduction of timeline) there is still no way to rearrange the virtual desktops.
Update: 2018-07-31, still a no-go, but Feedback Hub now has 1,517 Upvotes for this feature.
Update: 2019-07-31, still a no-go for Windows 1809 (Oct 2018 update, aka "Fall Creators, 2018"), but Feedback Hub now has 1,710 Upvotes for this feature.
Update: 2020-02-24, I'm currently running the Microsoft insider preview slow-channel and it's still not a feature. This implies it'll be doubtful to see this appear for the "Sprint Creators, 2020" (do they even still call it 'creators update'??)
A workaround :
Say you have 6 desktops and you want to switch 2 and 4.
What do you do ?
- You create a 7th desktop, put the content of the 4th into the 7th by moving all windows from the 4th into the 7th, one by one, manually, by hand.
- Now you move the content of the 2nd into the 4th
- Finally you move the content of the 7th into the 2nd.
You can do this (and a lot more) with the following third-party app: https://github.com/ViRb3/SylphyHornEx