1. Copy a large number of files in Windows 10, resulting in CPU usage 100% of which makes it impossible to perform other operations (other operations are too slow, basically it will take a few seconds to react.), during this period may also be because I did the operation to delete the folder (size 10GB). as shown in Figure 1

Figure 1

2. Then decide to stop copying, and find that there is no response after clicking, and have to delete the process of copying the file in the resource manager. It is found that the CPU usage has not decreased. as shown in Figure 2

Figure 2

3. Finally, you have to restart Windows Explorer. The CPU usage has finally dropped. as shown in Figure 3

Figure 3

4. Then decide not to exceed 1 GB for each copying, and find that the CPU usage is acceptable, and does not affect other operations. as shown in Figure 4

Figure 4