Hello im trying to re-install Windows 10 from seven after my little cousin reverted my PC (dell OptiPlex 380) back to 7 now I cannot update again I have registry corruption as far as I know that cannot be repaired I do not have disks for Windows 7 but have the partition as far as I know but I don't know how to factory reset OS, then I may be able to install win 10 before it's too late, please help I'm now trying dell back up and recovery as my last hope to restart Windows and not just install it as it is
C1900101-40017
Is the error code but with the details of the fail it says corrupted registry
I'm lost in hours of trying to systematically deduce this
Lee
↧