also @ TechSpot: Asus' new lineup of Z87 Haswell motherboards revealed

Recent Windows patches may cause black screen, free fix available (updated)

By

On December 1, 2009, 6:01 PM

Update: Microsoft has denied Prevx's claims, calling them "inaccurate," among other things. Redmond contacted Prevx who responded with a blog post confirming that Microsoft's recent patch was not to blame. Prevx has apologized for the inconvenience, losing some credibility in the process.

Original story: A Computerworld report suggests that Microsoft's most recent batch of security patches may be causing black screens on some systems. According to Mel Morris, the CEO of security company Prevx, the issue was discovered last week and affects Windows 7, Vista and XP. It supposedly stems from changes Microsoft made to the Access Control List (ACL), which interacts with registry keys to create visible desktop features.

The patch alters those registry entries, and some installed applications simply aren't aware of the change, thus malfunctioning. Morris notes that security applications seem to be particularly affected, and called the bug "massively debilitating," forcing some users to reinstall their operating system. Thankfully, Prevx has provided free software that fixes the registry to match the ACL settings, and that should resolve the issue.

Microsoft has not commented on the issue, and Prevx plans to supply Redmond with a copy of the remedy. Check out Prevx's blog post for more information, or simply download the fix here. If you've experienced this problem, feel free to blow off steam in the comments. In the meantime, if you haven't updated Windows yet, you may want to wait -- or at least keep the fix on-hand.

No tags on this story

User Comments: 54

Got something to say? Post a comment
  1. No issues here at all.

  2. Hmm, 99% no problems with Win7 updates EXCEPT for one optional update (Realtek NIC Driver) that did in fact "break" my NIC - the worst part of it was that it was intermittent and didn't show up immediately - by the time I figured out the real problem I was ready to tear my hair out and the driver rollback feature did not work. Eventually managed to source a working driver from the manufacturers website - now I am super wary of optional hardware driver updates....

  3. As if the whinning and sleezy I'm a Mac ads need anything more to try and shoot with (I for one am sick of them). However, I upgraded to Win 7 from Vista and I can say that Win 7 thus far has been a pleasure and that I have had no issues whatsoever. MS really did it right this time around.

  4. Ha! *boast* I was right about something!

    I knew it seemed a tad bit fishy...

Recently commented stories

Post a new comment

Social Login & Guest Posting TechSpot Members
Login here or sign up for free,
it takes about a minute.
Get complete access to the TechSpot community. Join thousands of technology enthusiasts that contribute and share knowledge in our forum. Get a private inbox, upload your own photo gallery and more.
TechSpot on:

Subscribe to TechSpot

Get free exclusive content, learn about new features and breaking tech news.