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Appendix A: Using PartitionMagic With Other Programs106
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To increase compressed space (enlarge the compressed volume), move the slide bar
to the left. To increase uncompressed space (shrink the compressed volume), move
the slide bar to the right.
If you want to shrink the host for a compressed drive, move the bar to the right to
create more uncompressed space on the host. You can then use PartitionMagic’s
Resize/Move operation to make the host partition smaller. If you have already used
Resize/Move to resize the partition larger and want to add more space to the
compressed volume, move the slide bar to the left.
Operating System Boot Utilities
Both OS/2’s Dual Boot and System Commander 2.0 and above accommodate boot sector
changes made by PartitionMagic. To install System Commander on drives that
PartitionMagic has modified, you may need to use System Commander 2.06 or later.
If you have System Commander on your computer, you must configure it so that it does
not simultaneously unhide multiple primary partitions. To configure System Commander
so that it does not create multiple visible primary partitions, complete these steps for each
operating system selection on the System Commander menu:
1 On the Operating System Selection menu, select an operating system.
2 Press <Alt+S>.
3 Click Local Special Options ➤ Primary partitions accessible on drive 0.
A screen appears with three options: All, Auto (the default), and None.
4 Click None.
The other primary partitions will now be hidden when this operating system boots.
5 Repeat steps 1-4 for all operating system selections on the menu.
Virus Protection Software
PartitionMagic modifies the master boot record and partitions’ boot sectors. Virus
protection software should be able to detect that PartitionMagic is changing partition
tables and not boot code; however, it is possible that unsophisticated virus protection
programs may mistake PartitionMagic changes as attempts to install a virus. If this occurs,
turn off the virus protection program while using PartitionMagic and inform the virus
protection software manufacturer of the problem.