Boot Configuration Data (BCD)
Boot Configuration Data File -Straight from A+ Certification book
It is not just with Vista, it is the cache that stores data on the hard disk.
If you just put in the DVD for Home Premium and choose "Upgrade" then you won't lose any data, it will just change which edition that you're running.
You can cancel it using a special cd, but you are using bitlocker for the system disk (where vista is installed) and you will try to cancel your password you will loose all your data.
EPS
Windows Boot Manager (bootmgr)File,Windows boot loader (winload.exe)File and the Boot Configuration Data (BCD) File
Windows Vista supports Microsoft Office documents and most audio files. .... "Word" to start Microsoft Word, "Mail" to open Windows Mail
Tally9.0 installed
No, you cannot perform an in-place upgrade from Windows Vista to Windows 8.1. Microsoft does not support direct upgrades from Windows Vista to Windows 8.1; instead, users must perform a clean installation. This means backing up data, installing Windows 8.1 from scratch, and then restoring data and applications afterward.
The Hard Drive with Windows Vista installed on it would not work in Windows 98 unless you reformatted it using the FAT32 File System, thus erasing all data. Windows Vista uses the NTFS file system, which is not supported by Windows 98.
You can't format a CD-R, the data is irreversibly etched onto it.
Yes, it can.