Windows 10 security center delete protection history need to delete the security center log.
The specific operation is shown below:
1, double-click on the computer desktop to open My Computer.
2, in the address bar, enter the Security Center log file path C:\ProgramData\Microsoft\Windows Defender\Scans\History\Results.
3, delete the contents of the folder.
4, as shown in the figure, open windows security center again, security center records have been deleted.