text: <s>[INST] PowerFlex 525 - Series USB Application slow to open Peripheral Drive. Hi! I have a physical machine with W7 SP1 64 bits operating system, on this machine ControlFLASCH V15.03 is installed, a virtual machine with the same operating system settings with all software installed. I want to use the serial USB application only on the physical machine, but it is too slow to open, a condition that does not occur on the virtual machine. Could someone help me solve this problem? [/INST] Henrique, On the physical machine does the USB Transfer Utility eventually connect, or does it never connect? Are you able to find the PF52XUSB.exe file? If not, you can get it from this Knowledgebase article. PowerFlex 523/525: USB Transfer Utility USB 3.0/Windows 10 Compatibility (custhelp.com). Let me know if these solutions do not work. \\n </s>