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Error: Code 8001 - |' has been changed since the last time you opened it, either by another user or because another instance of it was opened on your own machine.@Do you want to replace the changes that you or another user made?@* To save your most recent changes and discar


How to fix the Runtime Code 8001 Microsoft Access Error 8001

This article features error number Code 8001, commonly known as Microsoft Access Error 8001 described as |' has been changed since the last time you opened it, either by another user or because another instance of it was opened on your own machine.@Do you want to replace the changes that you or another user made?@* To save your most recent changes and discar


About Runtime Code 8001

Runtime Code 8001 happens when Microsoft Access 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!

  • Access - DO NOT USE this tag for Microsoft Access, use [ms-access] instead
  • Instance - In object-oriented programming an instance is an occurrence or a copy of an object, whether currently executing or not.
  • Replace - Replacing is the action of searching a string for a sub-string and replacing it with a different string.
  • Save - To store data in a computer or on a storage device.
  • Time - Measuring the time it takes to perform an operation
  • Access - Microsoft Access, also known as Microsoft Office Access, is a database management system from Microsoft that commonly combines the relational Microsoft JetACE Database Engine with a graphical user interface and software-development tools
  • Microsoft access - Microsoft Access, also known as Microsoft Office Access, is a database management system from Microsoft that commonly combines the relational Microsoft JetACE Database Engine with a graphical user interface and software-development tools

Symptoms of Code 8001 - Microsoft Access Error 8001

Runtime errors happen without warning. The error message can come up the screen anytime Microsoft Access 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 Microsoft Access Error 8001 (Error Code 8001)
(For illustrative purposes only)



Causes of Microsoft Access Error 8001 - Code 8001

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 ErrorVault.com 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 1 down vote accepted
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.
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.
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 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.
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 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
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 8001 (Microsoft Access-Fehler 8001) - |' seit dem letzten Öffnen geändert wurde, entweder von einem anderen Benutzer oder weil eine andere Instanz davon auf Ihrem eigenen Computer geöffnet wurde.@Möchten Sie die Änderungen ersetzen, die Sie oder ein anderer Benutzer vorgenommen haben?@* Um Ihre letzten Änderungen zu speichern ändern und verwerfen
Come fissare Errore 8001 (Errore di Microsoft Access 8001) - |' è stato modificato dall'ultima volta che l'hai aperto, da un altro utente o perché un'altra istanza è stata aperta sulla tua macchina.@Vuoi sostituire le modifiche che tu o un altro utente hai fatto?@* Per salvare le tue più recenti cambiamenti e scarichi
Hoe maak je Fout 8001 (Microsoft Access-fout 8001) - |' is gewijzigd sinds de laatste keer dat u het opende, hetzij door een andere gebruiker of omdat een ander exemplaar ervan op uw eigen computer werd geopend.@Wilt u de wijzigingen vervangen die u of een andere gebruiker heeft aangebracht?@* Om uw meest recente wijzigingen en verwijderen
Comment réparer Erreur 8001 (Erreur d'accès Microsoft 8001) - |' a été modifié depuis la dernière fois que vous l'avez ouvert, soit par un autre utilisateur, soit parce qu'une autre instance a été ouverte sur votre propre ordinateur.@Voulez-vous remplacer les modifications que vous ou un autre utilisateur avez apportées ?@* Pour enregistrer votre plus récent changements et abandon
어떻게 고치는 지 오류 8001 (마이크로소프트 액세스 오류 8001) - |' 다른 사용자에 의해 또는 다른 인스턴스가 자신의 컴퓨터에서 열렸기 때문에 마지막으로 연 이후로 변경되었습니다.@자신이나 다른 사용자가 변경한 내용을 바꾸시겠습니까?@* 가장 최근에 변경한 내용을 저장하려면 변경 및 폐기
Como corrigir o Erro 8001 (Erro 8001 do Microsoft Access) - | ' foi alterado desde a última vez que você o abriu, por outro usuário ou porque outra instância dele foi aberta em sua própria máquina. @ Deseja substituir as alterações que você ou outro usuário fez? @ * Para salvar as mais recentes muda e desaparece
Hur man åtgärdar Fel 8001 (Microsoft Access Error 8001) - | ' har ändrats sedan förra gången du öppnade den, antingen av en annan användare eller för att en annan instans av den öppnades på din egen maskin.@Vill du ersätta de ändringar som du eller en annan användare gjorde?@* Vill du spara den senaste ändringar och diskar
Как исправить Ошибка 8001 (Ошибка Microsoft Access 8001) - | ' был изменен с тех пор, как вы в последний раз открывали его, либо другим пользователем, либо потому, что другой экземпляр его был открыт на вашем собственном компьютере. @ Вы хотите заменить изменения, внесенные вами или другим пользователем? @ * Чтобы сохранить ваши самые последние изменяет и отказывается
Jak naprawić Błąd 8001 (Błąd programu Microsoft Access 8001) - |' został zmieniony od czasu ostatniego otwarcia przez innego użytkownika lub z powodu otwarcia innej instancji na Twoim własnym komputerze.@Czy chcesz zastąpić zmiany wprowadzone przez Ciebie lub innego użytkownika?@* Aby zapisać najnowsze zmiany i odrzucenie
Cómo arreglar Error 8001 (Error 8001 de Microsoft Access) - | ' ha cambiado desde la última vez que lo abrió, ya sea por otro usuario o porque se abrió otra instancia en su propia máquina. @ ¿Desea reemplazar los cambios que usted u otro usuario hizo? @ * Para guardar su cambios y descartar




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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Last Updated:
31/03/23 03:19 : A Android user voted that repair method 1 worked for them.

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