On both PC and Mac computers there is a safe way to may sure you don’t corrupt your data.. PC instructions here from Microsoft:
Safely remove devices from your computer
If you unplug a storage device or removable drive from your computer while it’s transferring or saving information, you might risk losing some information. Windows provides a way to help you safely remove such devices.
Most USB devices can safely be unplugged and removed. When unplugging storage devices, such as USB flash drives or external hard drives, make sure that the computer has finished saving any information to the device before removing it. If the device has a small light that shows when it’s use, wait a few seconds after the light has finished flashing before unplugging it.
If you see the Safely Remove Hardware icon in the notification area, at the far right of the taskbar, you can use this as an indication that your devices have finished all operations in progress and are ready to be removed. If you don’t see the Safely Remove Hardware icon, click the Show hidden icons button to display all icons in the notification area.
To safely remove a certain device, click the Safely Remove Hardware icon , and then, in the list of devices, click the device that you want to remove. Windows will display a notification telling you it’s safe to remove the device.
On a Mac, right click the drive and chose eject, OR drag the drive to the trash. It is in the menu if the drive is selected also, as shown here:
For some reason the Bonjour installed with CS2/CS3 can have the unintended effect of making your network connection look like two network connections and actually disconnecting you from the network.
I’m not clear on how it works, but it’s trying to help you out by looking for machines around you running Version Cue. However, somehow it ends up making your default gateway 0.0.0.0 which doesn’t work at all. If this happens to you, you can remove Bonjour pretty simply if you don’t need it.
Removing Bonjour for Windows (CS3 only)
To remove Bonjour:
Open a Windows command prompt and type the following command:
A number of users have encountered problems connecting or staying connected to wireless networks using Mountain Lion. This combination of steps from the folks at seems to work like a charm. Click here to check it out on their page.