thanks for the reply, I am using Windows 11.
The drive did not show up when plugged into CF card reader but I downloaded a partition management software and the drive was there, I just assigned it a drive letter and it then worked.
Anyways, I find these overlay software terrible, I think Ontrack actually stuffed up something in my PC as I now cant plug any other blank CF card into the CD-IDE adapter without getting correct size recognised. Not sure what to do to be honest. I tried 1GB, 2GB, 512MB CF cards and the BIOS detects incorrect sizes now. This is only happening since I installed ontrack. I thought it only writes info into the MBR of the drive, not in the controller / PC bios ?