Microsoft has confirmed what would possibly initially appear to be a mildly, nay, arms-wavingly alarming problem with a current Home windows 11 preview construct. Specifically, putting in it “would possibly trigger gadgets to restart repeatedly,” requiring “restoration operations in an effort to restore regular use.”
On deeper inspection, it’s really not fairly so alarming as a result of this problem solely appears to have an effect on virtualised Home windows environments that put in the elective June 26 KB5039302 replace. This replace is a preview construct, which basically means it’s most of July’s replace packaged for an elective early obtain.
Fortunately, Microsoft caught the difficulty earlier than the upcoming July 9 patch. If it had rolled out, some digital Home windows environments—presumably enterprise machines, for probably the most half—might need failed to start out or repeatedly restarted. However Microsoft says the replace “is now paused just for gadgets affected by the difficulty” and “may not be supplied to Hyper-V digital machines operating on hosts that make the most of sure processor varieties.”
To be clear, plainly it’s solely a difficulty for virtualized Home windows programs equivalent to Microsoft Cloud PCs or Azure Digital Desktops, or presumably localised digital machines equivalent to one you would possibly run on VMWare or VirtualBox. So, don’t fear about your bodily PC which has Hyper-V enabled, as a result of it solely appears to be an issue for any digital machine operating on that hypervisor.
In case you do run Home windows on a cloud PC or digital machine and also you’ve put in this replace, you’ll be able to revert and uninstall it from the Home windows Restoration setting as soon as Home windows finally plonks you into it after the various reboots. Simply go to Troubleshoot > Superior Choices > Uninstall Updates > Uninstall newest high quality replace, then reboot when it prompts you to.
For the non-virtualised Home windows environments that may obtain it, the KB5039302 replace has just a few good enhancements and fixes. Most likely most related to PC players is the repair for a difficulty that prevented some GPUs from getting into idle states when not in use. There’s additionally a repair for points regarding excessive system CPU utilization brought on by the Home windows Filtering Platform (WFP) driver, which is utilized by firewalls and so forth.
So, extra CPU efficiency freed up for pumping out the framez, and a smattering of GPU customers seeing much less energy draw. What’s to not love? Oh, proper, the boot loops. Sorry, digital desktop customers!