Windows Defender Antivirus real-time monitoring blocking critical automated file modification macros inside finance tools

The issue is that Windows Defender is mistaking your Excel macro’s automatic updates for suspicious behavior and blocking them. In simple terms, the security system thinks the macro is acting like malware because it keeps changing files quickly. The fix is to mark those trusted Excel files or macros as safe so Defender doesn’t block them. Usually this means adding the workbook to Defender’s exclusions or setting a company policy that allows signed corporate macros. Once that’s done, the macros will run normally again without freezing.