How do I free a locked com port?
Posted on 2010-09-15
I’ve come across an annoying issue that I’d like to know if there’s a good solution for.
If there is data being transmitted to one of my PCs com ports when Windows XP starts up, XP decides the com port is in use and locks it from use. The only way I know of to “free” it is to shut down the PC, disconnect the device that was talking on the COM port, and reboot and then reconnect the device again. This is a huge hassle.
1) Is there a way to prevent Windows from “locking” the port so it’s not an issue anymore?
2) Is there a way to force Windows XP to allow the port to be used instead of requiring a hard shutdown and reboot?