If you’ve ever come across this problem, it can be so frustrating! But I discovered a trick that may solve the problem. NOTE: this applies only if you have the preference set to use multiple windows. Here’s how to find that preference:
Edit > Preferences > Desktop View | In the My Preferences tab, select the Multiple Windows radio button
Okay. Here’s the trick! When opening the window, hold down the “Shift” key:
Banking > Make Deposits while holding down the shift key!
Your window should now open to a smaller size! This can work with other windows as well. Have you noticed that windows will open at the same size you last left them? Play around and see what happens.
Let me know if this solved your problem or if you have any other questions about windows in QuickBooks!
thinkQuickBooks 
Thanks It works