Qpst 274961 Full [work] <DELUXE ✮>

Used to identify connected devices, view active COM ports, and manage the connection between the PC and the phone. EFS Explorer:

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Used to back up or restore Non-Volatile (NV) memory contents, which is critical for preserving IMEI and network calibration data. Used to identify connected devices, view active COM

A: Delete it immediately. Scan your PC with Malwarebytes. Legitimate QPST does not trigger heuristic alarms (except for the driver signature, which is a false positive). If it flags as "Trojan:Win32/Wacatac," it is fake. Used to back up or restore Non-Volatile (NV)