Add guide lines at document center in Photoshop

• Go to View -> New Guide...
• Select Horizontal
• Position: 50%

repeat the steps for the Vertical guide

Copy smartfiler to another layer

Just drag and drop the smart filter on a new layer

ERROR: "Could not open a scratch file because the file is locked"

Method 1:

• Run Photoshop as Administrator

Method 2:

• while Photoshop opens hold down Ctrl+Alt to open the Cratch Disk Preferences (PS: you have to be quick, before it opens)

Method 3:

• while Photoshop opens hold down Ctrl+Alt+Shift to delete the preferences file (PS: you have to be quick, before it opens)

Method 4:

• set the user and system environment variables %TEMP% and %TMP% to point to a custom folder (like C:\Temp)

Backup/Restore Photoshop

• Brushes
• Mac OS X: ~/Library/Application Support/Adobe/Adobe Photoshop CS4/Presets/Brushes
• Windows: [Drive]:\Users\<user>\AppData\Roaming\Adobe\Adobe Photoshop ##\Brushes
• New Document Presets
• Mac OS X: <user>/Library/Application Support/Adobe/Adobe Photoshop ##/Presets
• Windows : [Drive]:\Users\<user>\AppData\Roaming\Adobe\Adobe Photoshop ##\Presets
• Patterns
• Mac OS X: <user>/Library/Application Support/Adobe/Adobe Photoshop ##/Paterns
• Windows : [Drive]:\Users\<user>\AppData\Roaming\Adobe\Adobe Photoshop ##\Paterns