Error: Code 384 - The Left, Top, Height, and Width properties can't be changed on a minimized or maximized form.

How to fix the Runtime Code 384 A form can't be moved or sized while minimized or maximized

This article features error number Code 384, commonly known as A form can't be moved or sized while minimized or maximized described as The Left, Top, Height, and Width properties can't be changed on a minimized or maximized form.

About Runtime Code 384

Runtime Code 384 happens when Windows fails or crashes whilst it's running, hence its name. It doesn't necessarily mean that the code was corrupt in some way, but just that it did not work during its run-time. This kind of error will appear as an annoying notification on your screen unless handled and corrected. Here are symptoms, causes and ways to troubleshoot the problem.

Definitions (Beta)

Here we list some definitions for the words contained in your error, in an attempt to help you understand your problem. This is a work in progress, so sometimes we might define the word incorrectly, so feel free to skip this section!

  • Height - The property which determines the size of an object on the Y-axis
  • Minimized - A minimized object is one that has been replaced with an object that can restore the original when selected.
  • Properties - A property, in some object-oriented programming languages, is a special sort of class member, intermediate between a field or data member and a method
  • Width - The property which determines the size of an object on the X-axis
  • Form - A form is essentially a container that can be used to hold any amount of any subset of several types of data

Symptoms of Code 384 - A form can't be moved or sized while minimized or maximized

Runtime errors happen without warning. The error message can come up the screen anytime Windows is run. In fact, the error message or some other dialogue box can come up again and again if not addressed early on.

There may be instances of files deletion or new files appearing. Though this symptom is largely due to virus infection, it can be attributed as a symptom for runtime error, as virus infection is one of the causes for runtime error. User may also experience a sudden drop in internet connection speed, yet again, this is not always the case.

Fix A form can't be moved or sized while minimized or maximized (Error Code 384)
(For illustrative purposes only)

Causes of A form can't be moved or sized while minimized or maximized - Code 384

During software design, programmers code anticipating the occurrence of errors. However, there are no perfect designs, as errors can be expected even with the best program design. Glitches can happen during runtime if a certain error is not experienced and addressed during design and testing.

Runtime errors are generally caused by incompatible programs running at the same time. It may also occur because of memory problem, a bad graphics driver or virus infection. Whatever the case may be, the problem must be resolved immediately to avoid further problems. Here are ways to remedy the error.

Repair Methods

Runtime errors may be annoying and persistent, but it is not totally hopeless, repairs are available. Here are ways to do it.

If a repair method works for you, please click the upvote button to the left of the answer, this will let other users know which repair method is currently working the best.

Please note: Neither nor it's writers claim responsibility for the results of the actions taken from employing any of the repair methods listed on this page - you complete these steps at your own risk.

up vote 7 down vote accepted
Using Control Panel
  • For Windows 7, click the Start Button, then click Control panel, then Uninstall a program
  • For Windows 8, click the Start Button, then scroll down and click More Settings, then click Control panel > Uninstall a program.
  • For Windows 10, just type Control Panel on the search box and click the result, then click Uninstall a program
  • Once inside Programs and Features, click the problem program and click Update or Uninstall.
  • If you chose to update, then you will just need to follow the prompt to complete the process, however if you chose to Uninstall, you will follow the prompt to uninstall and then re-download or use the application's installation disk to reinstall the program.
Using Other Methods
  • For Windows 7, you may find the list of all installed programs when you click Start and scroll your mouse over the list that appear on the tab. You may see on that list utility for uninstalling the program. You may go ahead and uninstall using utilities available in this tab.
  • For Windows 10, you may click Start, then Settings, then choose Apps.
  • Scroll down to see the list of Apps and features installed in your computer.
  • Click the Program which is causing the runtime error, then you may choose to uninstall or click Advanced options to reset the application.
You might be getting the error because of an update, like the MS Visual C++ package which might not be installed properly or completely. What you can do then is to uninstall the current package and install a fresh copy.
  • Uninstall the package by going to Programs and Features, find and highlight the Microsoft Visual C++ Redistributable Package.
  • Click Uninstall on top of the list, and when it is done, reboot your computer.
  • Download the latest redistributable package from Microsoft then install it.
If the error is related to a bad graphics driver, then you may do the following:
  • Open your Device Manager, locate the graphics driver
  • Right click the video card driver then click uninstall, then restart your computer
When you get a runtime error, keep in mind that it is happening due to programs that are conflicting with each other. The first thing you can do to resolve the problem is to stop these conflicting programs.
  • Open Task Manager by clicking Ctrl-Alt-Del at the same time. This will let you see the list of programs currently running.
  • Go to the Processes tab and stop the programs one by one by highlighting each program and clicking the End Process buttom.
  • You will need to observe if the error message will reoccur each time you stop a process.
  • Once you get to identify which program is causing the error, you may go ahead with the next troubleshooting step, reinstalling the application.
Virus infection causing runtime error on your computer must immediately be prevented, quarantined or deleted. Make sure you update your virus program and run a thorough scan of the computer or, run Windows update so you can get the latest virus definition and fix.
You might also be experiencing runtime error because of a very low free space on your computer.
  • You should consider backing up your files and freeing up space on your hard drive
  • You can also clear your cache and reboot your computer
  • You can also run Disk Cleanup, open your explorer window and right click your main directory (this is usually C: )
  • Click Properties and then click Disk Cleanup
If the error you are getting is related to the Internet Explorer, you may do the following:
  1. Reset your browser.
    • For Windows 7, you may click Start, go to Control Panel, then click Internet Options on the left side. Then you can click Advanced tab then click the Reset button.
    • For Windows 8 and 10, you may click search and type Internet Options, then go to Advanced tab and click Reset.
  2. Disable script debugging and error notifications.
    • On the same Internet Options window, you may go to Advanced tab and look for Disable script debugging
    • Put a check mark on the radio button
    • At the same time, uncheck the "Display a Notification about every Script Error" item and then click Apply and OK, then reboot your computer.
If these quick fixes do not work, you can always backup files and run repair reinstall on your computer. However, you can do that later when the solutions listed here did not do the job.
Other languages:

Wie beheben Fehler 384 (Ein Formular kann im minimierten oder maximierten Zustand nicht verschoben oder in der Größe geändert werden) - Die Eigenschaften Left, Top, Height und Width können in einem minimierten oder maximierten Formular nicht geändert werden.
Come fissare Errore 384 (Un modulo non può essere spostato o ridimensionato mentre è ridotto a icona o ingrandito) - Le proprietà Left, Top, Height e Width non possono essere modificate in un modulo ridotto a icona o ingrandito.
Hoe maak je Fout 384 (Een formulier kan niet worden verplaatst of vergroot of verkleind als het is geminimaliseerd of gemaximaliseerd) - De eigenschappen Links, Boven, Hoogte en Breedte kunnen niet worden gewijzigd op een geminimaliseerd of gemaximaliseerd formulier.
Comment réparer Erreur 384 (Un formulaire ne peut pas être déplacé ou redimensionné lorsqu'il est réduit ou agrandi) - Les propriétés Gauche, Haut, Hauteur et Largeur ne peuvent pas être modifiées sur un formulaire réduit ou agrandi.
어떻게 고치는 지 오류 384 (최소화하거나 최대화하는 동안 양식을 이동하거나 크기를 조정할 수 없습니다.) - Left, Top, Height 및 Width 속성은 최소화되거나 최대화된 양식에서 변경할 수 없습니다.
Como corrigir o Erro 384 (Um formulário não pode ser movido ou dimensionado enquanto minimizado ou maximizado) - As propriedades Left, Top, Height e Width não podem ser alteradas em uma forma minimizada ou maximizada.
Hur man åtgärdar Fel 384 (Ett formulär kan inte flyttas eller storleksanpassas medan det är minimerat eller maximerat) - Egenskaperna Vänster, Övre, Höjd och Bredd kan inte ändras på en minimerad eller maximerad form.
Как исправить Ошибка 384 (Форму нельзя перемещать или изменять ее размер в свернутом или развернутом виде) - Свойства Left, Top, Height и Width нельзя изменить в свернутой или развернутой форме.
Jak naprawić Błąd 384 (Nie można przenieść ani zmienić rozmiaru formularza, gdy jest zminimalizowany lub zmaksymalizowany) - Nie można zmienić właściwości Left, Top, Height i Width w zminimalizowanym lub zmaksymalizowanym formularzu.
Cómo arreglar Error 384 (Un formulario no se puede mover ni cambiar de tamaño mientras esté minimizado o maximizado) - Las propiedades Izquierda, Superior, Alto y Ancho no se pueden cambiar en un formulario minimizado o maximizado.

The Author About The Author: Phil Hart has been a Microsoft Community Contributor since 2010. With a current point score over 100,000, they've contributed more than 3000 answers in the Microsoft Support forums and have created almost 200 new help articles in the Technet Wiki.

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15/03/24 07:58 : A Windows 10 user voted that repair method 2 worked for them.

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Article ID: ACX01684EN

Applies To: Windows 10, Windows 8.1, Windows 7, Windows Vista, Windows XP, Windows 2000

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