What testing confirmed that EVT log deletion via handle manipulation can work without corrupting the system log?

The author tested by deleting logs within a specific time period. When the deletion period was set to a range with no logs (so nothing was altered), the system log file remained normal. When logs were actually removed, the modified memory caused errors in the live log file. However, as long as the number of logs was not changed, the file stayed intact. This confirms that while handle manipulation can delete entries, it cannot modify the log count and may cause instability if many entries are removed.