How to uninstall SCCM client and allow SCCM to reinstall on discovery

I'd like to use PSExec to uninstall the SCCM client on all workstations that I suspect have duplicate GUIDs and are currently reporting as non-SCCM workstations. Once the client is uninstalled, SCCM should be able to re-install the client on the next discovery. Trouble is, I haven't used PSExec in awhile and am looking for a sanity check.

The command I intend to use is as follows: "psexec @ComputerList.txt c:\windows\system32\ccmsetup\ccmsetup.exe /uninstall -u USERNAME -p PASSWORD"

Does this look correct? Also, do I need to delete the CCM Setup Folder from System32, or does it matter?.

Thanks!