KB4103721 prevents your PC from booting up, don’t install it
The Windows 10 April 2018 Update just got its first Patch Tuesday update. If you’re running this OS version, you can download KB4103721 via Windows Update or you can simply install the stand-alone update package from Microsoft’s Update Catalog.
Update KB4103721 fixes a series of severe issues affecting Windows 10 version 1803, including Chrome freezes and Remote Desktop connection problems. Unfortunately, this patch also brings quite a few bugs of its own.
KB4103721 reported issues
1. Computers won’t boot up
This is perhaps the most common issue affecting Windows 10 April Update users. Many complained their computers failed to start after installing KB4103721.
This update has some serious issues, specifically. Do NOT install this update after updating to Windows 10 version 1803. It will prevent your computer from booting up. I am stuck on the spinning circle for a long time.
2. Black screen issues
Other users managed to boot up their computers (well, sort of) but can’t use them. The devices remain stuck on a black screen and the only solution to fix this problem is to simply use a restore point.
The update is bricking my computer. After the update (KB4103721) download and installs, after restarting my computer will hang on a black screen and do nothing. The only way to fix it is to restore my PC to a previous restore point, where the PC will boot up normally again.
IObit Advanced System Care 11 users confirmed this tool messes up the update. To fix this issue, restart your PC and when the initial boot screen appears, simply press and hold the power button to enable Advanced Configuration. Then follow these steps:
- Go to Start > type ‘run > launch Run
- Type msconfig > go to the Services tab
- Uncheck IObit’s Advanced System Care 11 service > hit OK
- Restart your computer > install KB4103721 normally.
We hope this quick workaround helped you fix the problem. If you encountered other bugs after installing KB4103721, let us know in the comments below.
RELATED STORIES TO CHECK OUT:
- Don’t check for updates this Patch Tuesday to avoid getting the April Update
- Windows 10 April Update bug series: Fix Explorer crashes
- Free up hard drive storage space in Windows 10 April 2018 Update
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