Microsoft issues emergency Windows patch to fix critical ‘PrintNightmare’ vulnerability
Microsoft has started rolling out an emergency Windows patch to address a critical flaw in the Windows Print Spooler service. The vulnerability, dubbed PrintNightmare, was revealed last week, after security researchers accidentally published proof-of-concept (PoC) exploit code. Microsoft has issued out-of-band security updates to address the flaw, and has rated it as critical as attackers can remotely execute code with system-level privileges on affected machines.
As the Print Spooler service runs by default on Windows, Microsoft has had to issue patches for Windows Server 2019, Windows Server 2012 R2, Windows Server 2008, Windows 8.1, Windows RT 8.1, and a variety of supported versions of Windows 10. Microsoft has even taken the unusual step of issuing patches for Windows 7, which officially went out of support last year. Microsoft has not yet issued patches for Windows Server 2012, Windows Server 2016, and Windows 10 Version 1607, though. Microsoft says “security updates for these versions of Windows will be released soon.”
It took Microsoft a couple of days to issue an alert about a 0-day affecting all supported versions of Windows. The PrintNightmare vulnerability allows attackers to use remote code execution, so bad actors could potentially install programs, modify data, and create new accounts with full admin rights.
“We recommend that you install these updates immediately,” says Microsoft. “The security updates released on and after July 6, 2021 contain protections for CVE-2021-1675 and the additional remote code execution exploit in the Windows Print Spooler service known as ‘PrintNightmare’, documented in CVE-2021-34527.”
Windows 11 and Release Day
Windows 11 is finally, definitely official after being announced at Microsoft's big event on June 24.
Microsoft CEO Satya Nadella made sure to tell everyone at the event that this was the first version of a new era for Windows.
A very early build of Windows 11 had leaked before the event, showcasing a refreshed look and a new name, we finally got to see the new user interface and new features officially. Now though, the test build has been released to Insiders, ready to give the company feedback.
While Microsoft had in the past said that Windows 10 was going to be the only version of its operating system for years to come, it's now been around for six years, and this new update brings significant features to help justify the jump to a new number.

Cut to the chase
- What is it? Windows 11 is the successor to Windows 10
- When is it out? Likely late October
- How much does it cost? Free
Windows 11 release date
Microsoft says Windows 11 will be out "this holiday season" – so likely sometime between late November and Christmas.
There is also going to be a yearly update of the new operating system, similar to Apple's efforts with macOS.
While Microsoft released a tool that allowed you to see if your desktop PC or laptop will be able to run Windows 11, it was confirmed to be buggy, giving erroneous results for machines that would have no problem in running the update.
However, another tool has been released which gives you much clearer detail for how eligible for PC is.
It looks as though Microsoft are hinting at a release for Windows 11 in October. Countless screenshots have the date of October 20, alongside messages that state how many are looking forward to "turning it up to 11 in October!"