Hi - I hope someone can help.
For some time, I have had a problem with Windows 8 maintenance. After maintenance starts (flag icon), the CPU load goes to 100%, and it is very difficult to get the PC to respond. Even the mouse pointer is sluggish. Clicking the mouse gets rid of the maintenance icon, but the CPU load stays at 100%. The culprit usually (but not always) appears to be WMI provider host using 35% of the CPU.
Using task manager, I can eventually end the WMI task, and after a while the CPU load drops. This can take several minutes, but the problem will then happen again if I leave the PC idle for a while. Maintenance is set to start at 3 am but the PC is not left on overnight, so the problem happens after I switch on.
I have recently installed Windows 8.1 (previously Win 8), hoping that this update would cure the problem, but it has made no difference. Disabling maintenance in task scheduler prevents the problem, but only until I reboot.
The PC is an unmodified Lenovo desktop, i5-2320 with 8GB RAM, Windows defender factory installed, standard hard drive.
Can anybody suggest a reason for this?
For some time, I have had a problem with Windows 8 maintenance. After maintenance starts (flag icon), the CPU load goes to 100%, and it is very difficult to get the PC to respond. Even the mouse pointer is sluggish. Clicking the mouse gets rid of the maintenance icon, but the CPU load stays at 100%. The culprit usually (but not always) appears to be WMI provider host using 35% of the CPU.
Using task manager, I can eventually end the WMI task, and after a while the CPU load drops. This can take several minutes, but the problem will then happen again if I leave the PC idle for a while. Maintenance is set to start at 3 am but the PC is not left on overnight, so the problem happens after I switch on.
I have recently installed Windows 8.1 (previously Win 8), hoping that this update would cure the problem, but it has made no difference. Disabling maintenance in task scheduler prevents the problem, but only until I reboot.
The PC is an unmodified Lenovo desktop, i5-2320 with 8GB RAM, Windows defender factory installed, standard hard drive.
Can anybody suggest a reason for this?