If you are troubled by this issue, you have come to the right place.
However, the option go back to previous build might not be available.
The following are the full solutions that you should try.

Now, use it to revert the PC to the previous version of Windows.
Next, perform a system restore to fix the issue of go back to an earlier build not available.
Here is an article to show youhow to restore a system image from the external hard drive.

In other words, we call thisWindows Backup Restore to Different Computer, namely,universal restore.
Step 1: Run this freeware in Windows 10.
To choose a storage path, go to theDestinationsection to choose an external hard drive or USB drive.

Step 3: At last, start the OS backup in theManagepage by hittingBack up Now.
Step 2: Select a backup version to continue.
Step 3: Check all the system partitions required for Windows to run.

Besides, you should also checkMBRandTrack 0for a successful boot.
Step 5: Then, this software will start performing the restoration operation.
However, sometimes the PC couldnt start up properly.

So, what should you do?
Use MiniTool ShadowMakersUniversal Restorefeature to fix the issue.
Similarly, you oughta enter MiniTool Recovery Environment, navigate toToolsand chooseUniversal Restoreto fix the unbootable issue.

Dont have a backup?
Then, share it on Twitter to let more people know.
Step 1: Just go toSettings > Update & security > Recovery >Get startedunder theReset this PCsection.

Step 2: Then, a small window will pop up to ask you to choose an option.
To not lose files, like clickKeep my files.
Step 4: Finally, click theResetbutton to restore the PC to factory options.

But this isnt always the best way since it will delete the files on the C drive.
Thus, before doing this, like remember to back up important files.
Likewise, MiniTool ShadowMaker is helpful to back up your files, just as mentioned above.

Step 2: Double-nudge the ISO file you have downloaded and fire off the setup.exe file.
Step 4: Later, disableWindows Updateservice: go toControl Panel > Administrative Tools > Services.
Double-press Windows Update service and set theStartup typetoDisabledin theGeneraltab.

Now, its time to try the above methods to fix this issue.
Just choose one based on your actual situations.
Just leave a message below or contact[email protected].
