This is an issue I’ve experienced myself after applying a recent major Windows Update on both of my Acer and Asus laptops. When the computer boot into login screen, I can’t login to Windows 10 after update.
What actually happened was whenever I try to login to Windows 10 on the login screen, it gets right back to the login screen again like nothing ever happened. No matter what sign in method I used, be it password or pin entering, fingerprint login, or face recognition, it would only refresh the Windows 10 login screen.
If you also can’t login to Windows 10 after update and have the same symptom like mine, here’s what I did to resolve the issue.
Fix: Can’t Login to Windows 10 After Windows Update
Temporary boot into safe mode
This is what solved my problem, but not for long. The issue hit me again on my next restart on the laptop. Well, you can try it first and see if it allows you to login to your Windows 10 now.
The trick here is to temporary boot your Windows 10 into safe mode. Then, restart and boot it to normal mode again. It should allows you to sign in to your Windows 10 after doing that.
To boot into Windows 10 safe mode, on the Windows 10 login screen, click on the power button at the bottom right corner of the screen. While holding the Shift key, click on Restart.
On the startup settings screen, press 4 on your keyboard to select enable safe mode on next restart.
Login to safe mode like how you would in normal mode. Restart the computer again. The can’t login to Windows 10 after update issue should be fixed now.
If the power button can’t be found from the Windows 10 login screen, read this: How to Enter Safe Mode in Windows 10 If Your Windows is Corrupted.
Add another account using command prompt
You can also try to add another account for your Windows 10 and sign in to that account instead. Since we can’t access to Windows 10 in the first place, we will have to add the new account using command prompt. To access command prompt, we will need to boot into safe mode with command prompt.
Follow the steps above to open the Startup Settings screen. Instead of pressing 4, this time you have to press 6 to enter Safe Mode with Command Prompt. When your system reboot into command prompt, enter the following commands to create a new account for your Windows 10.
net user [username] /add
Optionally, you can also give the account a password by entering the following command.
net user [username] [password]
Restart your computer and try to login to the newly created account. If the can’t login to Windows 10 after update problem persists, read the next fix.
Rollback or restore your Windows 10
Like I’ve mentioned above, the temporary safe mode boot doesn’t fix the can’t login to Windows 10 after update issue permanently. It came right back on my next restart. So, what I did was I restore my Windows 10 to an earlier date. Since the problem is obviously caused by the recent Windows update, I would wait until the update to become stable before I install it again.
If the Windows update is a major one, you can do a rollback via the Windows recovery environment. Click here to learn how to roll back Windows 10 update to an earlier build.
If the rollback doesn’t appear as an option, do a system restore if you have a previously saved restore point, or by using a recovery drive. Go to here to learn about how to system restore Windows 10 to a previous date.
If both options are out of question, the only choice left is to reset your Windows 10. Click here to learn more about how to reset Windows 10 to factory settings.