Microsoft is recommending users uninstall a recent security patch after reports surfaced that it triggered the “Blue Screen of Death” in some computers.

The update –  MS 14-045 – was one of nine that Microsoft released on “Patch Tuesday,” August 12. The patches were intended to fix three separate security flaws, including a font vulnerability and a vulnerability in the Windows kernel. Within hours of the release, users flooded Microsoft’s support pages, reporting that MS 14-045 had generated a “Stop 0x50 error” (i.e., the Blue Screen of Death) on some systems, mostly 64-bit Windows 7 PCs.

“Yesterday I ran all the updates of the August patch day,” user “xformer” wrote on a Windows update support page. “Installation went smoothly. After rebooting everything worked fine. But when I shut down my notebook and switched it on a little later it came up with a blue screen with a Stop 0x50 in Win32k.sys. I could not even boot into safe mode as Windows failed to start no matter which mode chose.”

Xformer was not alone. The thread quickly gained nearly 380 responses and almost 50,000 views, a large amount even for a Microsoft support forum, ComputerWorld reports.

Microsoft subsequently launched an investigation into the patch, removed the download links, and updated the patch’s information page.

“Microsoft revised this bulletin to address known issues associated with installation of security update 2982791,” Microsoft said on the updated page. “Microsoft is investigating behavior associated with the installation of this update, and will update this bulletin when more information becomes available. Microsoft recommends that customers uninstall this update. As an added precaution, Microsoft has removed the download links to the 2982791 security update.”

As of Saturday, however, ComputerWorld reports that the flawed update was still being pushed out to users via Windows Update.