In the case we have mentioned above, you can disable it for just 10 minutes or less to check if the problem is fixed. Generally, you can just disable your antivirus software by right clicking its icon in the system tray. For some antivirus software sometimes, it can cause the system lagging issue. If you've installed some antivirus or anti-malware programs on computer, you can temporarily disable them to see if they're the cause of your 100% disk usage problem. Or you can just right click the blank space of your task bar and choose task manager. Simply check your computer’s disk usage by typing task manager in the Windows search bar and select Task Manager, then in the Processes tab, look at the % at the top of the Disk column. Please wait for a few minutes to see if your computer starts to perform well. If the command above isn’t valid, try the other command: net.exe stop sysmain Type command: net.exe stop superfetch and hit enter The command prompt will once again display. Click YES at the User Account Control prompt Press Windows key and X together and choose Command Prompt (Admin) Here, we are offering the steps to disable SuperFetch service to fix the 100% disk usage issues. However, it has been identified as a potential cause of disk performance issues on Windows 8 and later Windows versions, especially on Windows 10. SuperFetch helps to decrease your boot time and make must-load programs more efficiently. After that, restart the program and see if it still leads to the 100% disk usage issue. Then you can simply click the related program and choose end task. In task manager, you can check what program is occupying too much disk space. Please try the solutions accordingly to make your system run normally.ġ. To fix the 100% disk usage issue, we are offering some useful tips in the following paragraphs. This issue can be caused by the overloaded of the programs, and it will influence both the hard drives and the solid-state drives. If you don’t know which controller your boot device is attached to, repeat steps 2.1 through 2.4 for all AHCI controllers found under 1.2.Most Window users may have encountered the issue that their disk usage shows 100% in task manager, which leads to the system lagging or slow response. Navigate to: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Enum\PCI\\Device Parameters\Interrupt Management\MessageSignaledInterruptProperties, where refers to the device instance path you noted in step 2.1.Ĭhange the value of the MSISupported key from 1 to 0. Open the registry editor by typing regedit in the previously opened command prompt. In the same properties window opened in step 1.2, navigate to the Details tab and select Device instance path from the Property drop-down menu. Disable MSI for the controller in the registry:.If you see “StorAHCI.sys” in the list, you are running the inbox driver. Navigate to the driver tab and click Driver Details. This node is usually called “Standard SATA AHCI Controller.” Under IDE ATA/ATAPI Controllers right-click on the AHCI controller node and select Properties. Then type the following command in the command prompt window and hit Enter: devmgmt.msc Open a command prompt with administrator privileges. Identify if you are running the inbox AHCI driver (StorAHCI.sys):.If you follow these steps (taken from the article) your problem should be resolved. This is a known issue with certain ACHI devices. PS: I've googled 100% disk usage issues and came across many different suggestions (like disabling some windows services), but to be honest I'd prefere not to 'solve' the problem by cutting off pieces of the intended operation of my OS. I'd expect there's some process blocking IO access to all the others, so I've tried watching the performance monitor for heavy processess, but since I can only see the current read/write speed of each process/service, I haven't been able to pinpoint any abnormal behavior.Ĭan anyone show me how to diagnose this kind of issue please? As you can imagine it does reduce my productivity, and to be honest I hate it when my pc behaves unexpectatly :p If I have the task manager open, it says the read and write speeds are 0, but still my disk is being used for 100%. It usually takes one or two minutes for this blocking to be resolved. From time to time (sometimes every 10 minutes, sometimes once every few hours) my system becomes unresponsive because the disk usage is 100%. Since updating to win 10, I'm experiencing issues with my disk usage.
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