Hello @Aditya Jadhav ,
Thank you for posting here.
1] How much internet is required for updating Windows10 to version 2004??
A1: It depends on how many devices you have.
For example,
If we have one computer, it is about 5G. If we have multiple computers, we can assign more Internet based on the number of computers.
Meanwhile, we suggest we update during downtime.
2] When is the best time to update Windows10 to version 2004 for not having any bugs or problems??
A2: We can check the Windows 10 version of our current computers, we can update before the corresponding lifecycle (Windows lifecycle fact sheet).
Meanwhile, we can monitor the update of 2004 from the link --June 9, 2020—KB4557957 (OS Build 19041.329).
For more information, we can refer to the links below.
Windows lifecycle fact sheet
https://support.microsoft.com/en-us/help/13853/windows-lifecycle-fact-sheet
June 9, 2020—KB4557957 (OS Build 19041.329)
https://support.microsoft.com/en-us/help/4557957/windows-10-update-kb4557957
Download Windows 10
https://www.microsoft.com/en-au/software-download/windows10
Best Regards,
Daisy Zhou