You cannot modify the default save location but you can try modifying the places bar so that you can have easy access to the folders that you need:

http://www.askvg.com/how-to-customize-d … ialog-box/

Here's one configuration item that sets whether Photoshop remembers where you opened a file, or separates the remembered folder from which a file was opened from the remembered default for saving.  That configuration item is in the Edit - Preferences - File Handling dialog and is called [ ] Save As to Original Folder.

John Jebbia wrote:
Does anyone know if there's a way to make Photoshop go to a default folder when using "save as"? I'm constantly having to navigate to the folder I want all the way from the C Drive root.

Annoying isn't it - but think yourself lucky; mine regularly tries to save my files to the refrigerator and microwave oven in the kitchen.

DavidCoward Photography wrote:
Mine tries to save to the folder where the original file is located. When I start working on the photos from a shoot, I make a subfolder called Edits, then when I do a Save-as, it opens the original folder and I just double-click the Edits folder and save.

+1

JJMiller wrote:
Doesn't windows have a way to bookmark locations in the file browser yet? If not that's really pathetic, not to start a flame war   I use an older version of Win at work and it's a massive pain dealing with the file browser, especially over a network.

Network problems, when it comes to file saving has always been an issue with Windows. And I am not bashing Windows either. I own alot of Windows based machines, along with Mac's and Linux machines. Each have their own pluses and minuses.

If you map network drives in Windows, it does make things easier.