Ok, here is my setup.
Win XP installed on Seagate SATA 500GB drive. Win 7 installed on an old spare WD 120GB EIDE drive. After installing Win 7 I was never able to configure a true "dual boot" menu so I change drive priority via BIOS when necessary. EasyBCD never worked. MB is Intel D975XBX2.
Recently after running Win 7 for several days I reverted back to Win XP and at boot a long CHKDSK routine executed. When complete it stated changes had been made to the drive, not sure which one. The XP OS appears to be operating normally.
While operating in Win 7 I accessed the Win XP D: drive to extract media files and some dbases for installed software. I've backed up the dbases just is case there might be some corruption. System files were not accessed (as far as I know anyway).
I'm now very concerned about the Win XP drive as I didn't expect file corruption on the whole disk. Win XP is still my primary OS and this drive contains all my important data and applications. I thought a dual drive install would shield me from any serious problems.
I'd like to continue using Win 7 but file corruption is now a big concern. Does anyone have any suggestions short of physically disconnecting the drive? Is there any true file corruption occuring or am I just being paranoid?
Interestingly, on my E1505 I have set up XP/7 with a proper "dual boot" menu on a partitioned drive and I've never seen the CHKDSK menu.
Finally, I'm loving Windows 7. Can't wait for the RTM.