Changed first HD80gb in HP pentium4 - left second HD80gb (disconnected during new instal of software in new first HD 200). Bios reports HD200 + HD80 - install WinXPHE from recovery disk supplied by HP .. it only sees 130 GB. I tried PartitionMagic8.0... no free space. Same with DiskPart. PTEDIT probably sees some free space in the partition table but I tried to change some and could not get the result and was obliged to change back to use the HD again. Downloaded RecoveryExpert from Acronis... no help. The PC even support an external HD via FW of 80GB (the old firs HD) so it seems tha it should be possible to manage 130 + 80 + 80 and why not the first 200 ? My question is if there is a simpkle way to get use of the deisappeared 70GB and why it appened.