QQ phone flashback may be because the QQ version is too old or incompatible, which will lead to flashback during voice call. You don't have permission to open the system. When running QQ, right-click to select Run as Administrator or Get All Permissions as Administrator. If it is not enough, uninstall QQ and reinstall it. When installing, right-click the installation file to run the installation as an administrator.
When downloading updates or software, try to download updates from AISI Assistant. Aisi assistant has the function of repairing flashbacks. If the flashback software fails to be repaired, I personally suggest uninstalling the flashback software and reinstalling it.