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How do I get Sage 50 to open full screen like it used to? 


How do I get Sage 50 to open full screen like it used to?

My Sage 50 screen opens in the upper left hand corner.

The Task Window, the main window opens minimized or  the Sage 50 screen cannot be seen.

This is from the the Sage Knowledge base. Created on 06-17-2013 | Last modified on 06-24-2021


  • Main window opens up very small in far left hand corner of the screen
  • Task windows do not show on screen when opened
  • Visible in the Taskbar
  • Becomes visible when maximized from the Taskbar
  • Select a Report or Form window can also not show
  • Sales/Invoicing window moves behind Sage window when opened
  • Purchase/Receive Inventory window moves behind Sage window when opened
  • Sales Order window is smaller (half of the normal window) even when maximized
  • Login box is too small to enter user name and password
  • When clicking Invoice or Receipts screen, nothing happens
  • After installing Windows Updates the screens will not open
  • The Sales Order and Purchase Order windows will not maximize; they show up on the Taskbar, but I cannot get them to open
  • Task windows are minimized or only show the top bar
  • The Sage 50—U.S. Edition task windows show either minimized or the top bar of the window shows
  • Sage menu titles appear cut off
  • Clicking file bar causes the program to disappear
  • Damaged Positions key


Operating System Warning
This solution requires advanced knowledge of your computer’s operating system. Contact your system administrator for assistance. Modifying your Windows Registry incorrectly can severely affect system operations. Sage is not responsible for operation issues caused by incorrectly modifying your Windows Registry. Always create a backup of your data before proceeding with advanced solutions.


  • Positions registry key has become damaged
  • Window position was saved out of the viewable area
  • Data corruption
  • Windows Theme is causing a conflict with the screens
  • This is a known Windows 10 issue. Windows 10 remembers a windows size and position in a program.
  • Clutter in the data folder


Section I: Reposition the window

  1. Open the desired task window.
  2. Press Alt+Spacebar keys, and then type M.
  3. Press Up Arrow key on your keyboard one time.
  4. Move the mouse around without clicking any buttons, the window is now attached to the mouse cursor.

Note: In some cases, only the border outline of the window will be attached to the mouse cursor.

  1. Move the task window or outline to the center of the screen, and then click left mouse button.
  2. Re-size the window as appropriate by clicking and dragging the window corners.
  3. Click Close to close the task window.
  4. Open the task window.
  5. Confirm the window is visible.

Section II: Recreate the Positions key

  1. Close Sage.
  2. Press Windows+R keys.
  3. Type regedit in the Open box.
  4. Select File, Export and save a backup of the registry.
  5. Click Save.
  6. Browse to HKEY_CURRENT_USER\Software\Peachtree\Version\[Version}\, right-click Positions key and select Delete.
  7. Close Registry Editor.
  8. Verify the window is visible.

Section III: Modify text size using Personalize

  1. Close Sage.
  2. From your desktop, right-click, and then select Personalize.
  3. Click Display.
  4. Change setting to Smaller (100%), click Apply, and then restart computer.
  5. Verify your task window displays properly in Sage.

Section IV: Conflict with the Windows Theme

  1. Close Sage.
  2. From your desktop, right-click, and then select Personalize.
  3. Change Windows Theme to Basic or Classic (Windows 10 select a high contrast theme)
  4. Click Yes if prompted to save changes.
  5. Verify the screens now open without issue.

Section V: Windows 10

Note: Do not use Maximize. It will not remember it if you maximize. You must drag the edges to the desired size.

  1. Resize the window by following Section I Steps 6 through 8.
  2. Verify the window opens correctly.

Section VI: Data corruption

  1. Restore an earlier backup into a New Company; refer to Article ID 10097: How to restore a backup
  2. Verify your task window opens correctly.

Section VII: Set Icon to Run as administrator

  1. Close Sage.
  2. Right-click Sage Icon.
  3. Select Properties.
  4. Select Compatibility tab.
  5. Select Run this program as an administrator box.
  6. Start Sage and verify your task window opens correctly.

Section VIII: Create a clean expendable folder

  1. Refer to Article ID: 14920: Create a clean data folder and expendable file cleanup
  2. Verify issue no longer occurs
Product: Sage 50cloud (United States)
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