Windows 10: Have I upgraded to wrong version of 10?

I'm not too happy with 10 and wanted to roll back to 8.1 but when I tried everything worked perfectly till the last moment when I was left with a black screen. I gave windows Tech permission to access my PC and they tried it - same result.
I was called back and told to call then again and ask for a repair which would make it right.
However when I did the person I spoke to today (Online Chat) had never heard of a repair and said I couldn't roll back as my online upgrade was version 1551 and I would have needed version 10204 to roll back.
I can't find either of these versions with google search.
Anyone able to tell me what's going on?
Thanks

:)

 

I have upgraded to the latest version of windows and now my PC will not boot up - even with Windows 10 in the DVD Drive - any suggestions?

Help! I installed the new version of windows and now I can no longer see windows at all - it goes direct to the BIOS. I even tried connecting a boot disk via an external dvd reader and it wont even see the boot disk? Any suggestions? It say insert disk and
press any key to continue and then just hangs?

 

I have upgraded to the latest version of windows and now my PC will not boot up - even with Windows 10 in the DVD Drive - any suggestions?

Hi,

To resolve your query regarding your Windows 10 computer, we suggest that you perform the
Startup Repair.

To do this, you may follow the steps below:

Boot your computer into recovery environment.

1. Turn your computer on and off three times.

Note: Make sure to turn your computer
off after seeing the Windows logo.

2. After the third time, Windows 10 will boot into
diagnostic mode.

3. On the recovery screen, click Advance options.





4. Click Troubleshoot.





5. Click Advance options.





6. Then, click the Startup Repair.





Keep us informed about the issue so we can assist you further.

 

Hi,

The most current version is 1511 (OS Build 10586.17). The previous version is 10240.

Cheers, *Wink

 

Seems like he does not know what he is talking about wonder where he had it written down, either that or he needs glasses.
The version you want is the one posted by fdegrove

 

I'm guessing the 1551 that the OP posted was a typo and the MS Tech told him the correct version of 1511.

@OP - Did you backup your system prior to doing the upgrade? For some, the rollback feature doesn't work, I can't explain why. You may need to restore Win 8.1 from a backup or re-install the OS from install disk or do a factory restore.

Is the computer currently operational or not?

 

Here's my take on this. At this point, I don't know if the OP simply mis-typed the numbers or if the person he was
chatting with made the mistake. That is however a moot point.
My understanding is that the November Fall Update would not install over 10240 until 30 days had passed from when you originallyupdated from Win 7 or 8 . The reason for this was to allow one to roll-back to your original OS.
Once you had updated to the fall update (Ver. 1511 Build 10586), you could no longer roll-back to Win 7/8.
At this stage , the only way back is to use a recovery partition if one exists, restore a back-up if you made one, using media providedwith the machine, or by down-loading 8.1 from MS site and re-installing.
Now this is assuming that the OP actually does wish to return to 8.1 as he stated.

 

Thank you all for your input. Seems I have to accept that Microsofts' promise that I could roll back was false.
Actually I was finding that recent updates have improved 10 and I was starting to think I would like to keep it anyway when, working on it the mornng, I suddenly found that clicking on the windows button didn't bring up what it used to. Instead of settings etc I just got a page with 5 large icons ( or should that be Apps?) for mail etc.
So that's decided me to get an expert in to save my files and reload 8.1 - hopefully.