In multiple Windows 7 VMs that operate normally, the CPU usage of the HwUVPUpgrade.exe process of PV Driver increases sharply and finally occupies 1 CPU fully and does not release the CPU, as shown in Figure 1. As a result, user operations become very slow. After the VMs are restarted, the CPU usage of the process decreases to the normal level. However, it increases sharply again after a period of time.
1. If this issue has occurred in a VM in use, install antivirus software to find, delete, and protect against viruses. 2. Scan the VM templates for viruses. If a VM template has viruses, delete it and create a template again.
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