: Standard software usually installs in C:\Program Files or C:\Program Files (x86) . If this file is located in a temporary folder ( Temp ) or your Downloads folder without you having put it there, it could be suspicious.
: Before running any mystery executable, upload it to a multi-engine scanner like VirusTotal to see if any security vendors flag it as malicious. How to Fix Errors Related to qc1051deux64.exe qc1051deux64exe
: Specifically for older peripheral hardware like scanners, specialized printers, or diagnostic equipment. : Standard software usually installs in C:\Program Files