Why am I not able to install Windows 10 tech preview on my Lumia 730?

[Windows Central Question]

Not able to install Windows 10 tech preview on Lumia 730

error 0x801882c1 during installation of windows 10 insider preview on my nokia lumia 730.

 

[ttsoldier]

Re: Not able to install Windows 10 tech preview on Lumia 730

hard reset then try to upgrade

 

[Dusteater]

I get the same error on my Lumia 640 XL.