Those affected should be able to fix their computers using a restore point or by manually deleting the update from the Windows 10 Settings app.Awow bios update (1) Update all drivers and windows 10 update (1809) (2) Disable deep sleep in BIOS.

Windows users are advised to wait to install the update until Microsoft has fixed it.

Microsoft reports the bug is affecting those with certain Intel SSDs.

A bug in the latest Windows 10 cumulative update (KB4103721) is rendering some PCs unable to boot.

It probably won't come to that, but it's best to hold off on that update just in case. If neither of those options works you may have to do a clean installation of Windows 10.

Restart your computer and boot into Windows 10 normally.

On the Uninstall Updates screen find KB4103721 and uninstall it.

From there go to Update & Security > Windows Update > View Update History > Uninstall Updates.

Once in Safe Mode, open the Settings app.Note: you'll need to be an admin in order to roll back an update. Choose your option, boot into Safe Mode, and log in with your Windows credentials.When your PC reboots you'll have access to several boot modes, including Safe Mode and Safe Mode With Networking, either one of which will be fine for this purpose.Once there, navigate to Troubleshoot > Advanced Options > Startup > Restart. If you don't have a valid system restore point you're not out of luck-it's just going to take a few extra steps to solve the problem since you'll have to manually delete the update in Safe Mode. Windows should reboot, roll back, and start normally.Under Advanced Options click on Go Back To Previous Build.On the ASO screen click on Advanced Options.If F11 doesn't work check your PC maker's website. Note: F11 is the default key, but some manufacturers change this setting. If you do it correctly you should be on the ASO screen. Reboot your computer and hit F11 as soon as it powers up-if you see the Windows boot logo you've missed your chance and will need to restart again.Luckily for those affected, Windows creates a restore point before an update is installed, so if you can get to the Advanced Startup Options (ASO) screen you should be able to fix it. In both the Microsoft forum thread and the KB4103721 patch notes only one solution has been found to work: rolling back to an earlier version of Windows 10, as demonstrated on Windows Latest. How to fix a Windows 10 PC affected by KB4103721 If you have a Windows 10 PC running the April 2018 update you should hold off installing this latest patch until Microsoft issues definite word that it has been fixed. KB4103721 was designed to fix a number of issues that have arisen in the April 2018 update, but inadvertently caused a much more serious one.

Windows update in safe mode