Windows 10: Windows update to 1903 since 1809

I face this problem three times, actually my system is running slow and I don't know the reason, but I am sure it is a software problem. every time I try to download or update to the latest version of Windows, that is, 1903. We are offering this update to compatible devices, but your device is not ready for it. Once you are ready, you will see the update available on this page. There is nothing to do at this time. I don't know why I can't update to windows.

:)

 

W10 1809 to 1903 update

Lenovo ThinkCentre E73, I have updated from W10 1809 to 1903 and the PC has now gone really slow and having issues with admin rights, I have chkdsk'd and scannow'd' but no issues found. Tried an inplace update in case windows was corrupted and get the
message some hardware on this PC is incompatible with 1903 update. Can anyone shed any light in these issues please. I have had to revert to 1809 to make the PC usable again. Any suggestions please ? Microsoft have said Lenovo are responsible and Lenovo have
said Microsoft is responsible, which does not help me one bit.

 

Update Windows 10 - From 1809 to 1903

If we suppose we have windows 10 1903 in DVD or USB.

Can we update windows 10 1809 to 1903 with 1903's DVD? (offline update)

 

Update version 1903

When updating to version 1903, my computer gets stuck at 27% completed after 5 hours of updating. Can anyone tell me what is happening? Also, version 1809 showed on my list of failed installs and then it disappeared from the list. Was there a 1809?