The real culprit is the ScheduledDefrag task, but the problem surfaces during automatic maintenance.
#DEFRAG MY COMPUTER WINDOWS 8 PC#
It bundles all maintenance tasks and runs them under the high performance plan right after a plugged in PC becomes idle. This is another new Windows 8 feature primarily aimed at improving power efficiency and extending battery life in mobile PCs. The absence of visible triggers indicates that it operates under the umbrella of automatic maintenance. The ScheduledDefrag task is responsible for carrying on this assignment. Windows 8 takes it one step further by also sending TRIM commands for the entire SSD volume when the PC becomes idle. Windows 7 sends TRIM commands to an SSD when files get deleted. This tool has been rebranded in Windows 8, because there’s a new feature now for SSDs. It runs the defrag.exe utility to defragment HDDs on schedule, same as in Windows 7. You can type dfrgui on the Start screen to open the disk optimizer. How disk optimization works in Windows 8+
#DEFRAG MY COMPUTER WINDOWS 8 HOW TO#
How to avoid defragmentation of your SSD.How SSD defragmentation actually happens.How to check if your SSD has been defragmented.How disk optimization works in Windows 8+.The purpose of this post is to raise public awareness, clearly explain the reasons behind this bug behavior and provide an easy and correct workaround. Once I learned about it, I took my time to reproduce it and collect all the data, then submitted a thoroughly documented defect to Microsoft via the official channels. Please keep in mind that I’m not the one who discovered this problem originally. You’ll find my thoughts and take on this turn of events in the comments section of the Scott’s blog post. In short, Microsoft has confirmed SSD defrag when the system protection feature (aka system restore) is turned on, and this is by design. Scott Hanselman posted the product group clarification in his blog. Let’s take a closer look at how it happens.
Yet there is a bug limitation in Windows 8+ that causes the OS to run this unnecessary for SSDs operation from time to time. You’ve probably heard that modern OS Windows don’t defragment solid state drives.
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