Did you have PowerEdge R210 or PowerEdge 210 II. 

You can download latest BMC from below links. You can use "Update Package" format If you have supported Windows or Linux operating system(Refer "Supported Operating Systems" section) on the server.

If you do not have supported operating system you can update using bootable USB key using self extraction exe file. There will be a readme file with instruction on that.

BMC for PowerEdge R210

https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=xyc2d&productcode=poweredge-r210 

BMC for PowerEdge R210II

https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=pyrkn&productcode=poweredge-r210-2  

Hello

i Have r210. I have installed windows home 10

plese advice 

I got this error with your solution. Any suggestions? 

https://imgur.com/a/5M71o7s

Windows 10 is not a supported operating system on R210. That could be the reason update package failing on windows. Can you try updating BMC using bootable USB key using self extracting file. Once you extract the content there will be readme file with instruction on updating with USB key.

Hello

I did. Creating a USB bootable key on windows with diskpart, copy the content of the extraction in to usb, boot from USB. Got: no operating system found on this USB key.

Tried to download Dell Update utility. Got the mesage: ALL UPDATES ARE ALREADY INSTALLED. :))))

Any other reccomandation? Other OS to install in order to do the thing?

Thanks

You might need to use Support Live Image, and update throught it.

Hope that works for you.

Regards.