7 Quick Ways to Fix Access Error 3125 Is Not a Valid Name

Access error 3125 is not a valid name mainly triggered due to an oversized database, Access database corruption, invalid database name, or corrupt system files. However, the runtime error 3125 is not a valid name can easily be fixed by checking the Name & Size of the database, running the SFC scan utility, and repairing the corrupt database using MS Access Database Repair Tool.

Recently when I went through several forums and community websites then I found that many Access users have conveyed they received runtime error 3125. They even reported that they received this error while running the query or code to import data in the database or export data from the Access database.

Thus, if you are also facing an error message “This is not a valid name. Make sure that it does not include invalid characters or punctuation and that is not too long (Error 3125)” then read this article till the end.

Below you can find the screenshot of the error:

Here, I have discussed why the above-shown error message actually occurs and how to fix this issue in no time.

What Causes Runtime Error 3125 Is Not a Valid Name in MS Access?

Runtime bugs in the Access are usually triggered by mismatched programs functioning simultaneously. Besides, they might occur due to corrupt system files or virus infection.

Here, I have mentioned a few factors that are responsible for Microsoft Access is not a valid name or 3125 Access error:

1. Oversized database
2. Lengthy or invalid database name
3. Wrong location of a backend file
4. Access database corruption
5. Corrupt system files.

Irrespective of the cause of this error, the problem needs to be solved instantly to circumvent further problems.

In the next section of this post, you are going to find 7 quick ways to fix run-time error 3125 in Microsoft Access successfully.

So, let’s proceed…

How to Resolve Access Error 3125 Is Not a Valid Name?

Note: Don’t forget to back up and restore the Access database before applying the below methods.

1. Check the Database Name
2. Check the Database Size
3. Run SFC (System File Checker)
4. Rollback the Microsoft Office Updates
5. Resolve Memory Leakage of MS Access
6. Repair Corrupt Database Using Compact & Repair
7. Use the Best Tool to Repair Corrupt Access Database File

Fix 1- Check the Database Name

The very first method that you can try to fix this error is to check the Database name.

Ensure that your database name isn’t too lengthy. It ought to be within 64 characters & doesn’t contain special characters, spaces, double quote marks, or control characters.

In case, if your Database name is within 64 characters but still throwing a 3125 error, you should try further solutions.

Fix 2- Check the Database Size

It might possible that Microsoft Access is not a valid name error that has occurred due to a large-sized database.

So, make sure that your Access database size should not too large. It should be within recommended limit (2 GB).

However, if it’s exceeding the suggested limit, then compact it by using MS Access Compact & Repair Tool or transfer data to the new Database.

Fix 3- Run SFC (System File Checker)

The SFC (System File Checker) is a built-in utility that is available in all Windows versions. It allows for repairing corrupt system files in Windows.

Hence, you can use this inbuilt tool for repairing your corrupted system files and dealing with this error.

So, here are the easy steps that you can follow to fix Access error 3125 is not a valid name:

• On your Windows PC, go to the Start menu >> type ‘cmd’ in a search box.
• Then, click on “Command Prompt” option >> choose the Run as administrator

• Once the CMD window opened, type the below command & hit Enter.

DISM.exe /Online /Cleanup-image /Restorehealth

• At this time, you will get a message on your screen denoting “The operation completed successfully”, type the below command & again hit Enter.

sfc/scannow

• Now, the SFC tool will thoroughly scan the integrity of your system files & repair them.
• Lastly, restart the PC.

Also Read: Access Error 3048: Cannot Open Any More Databases

Fix 4- Rollback the Microsoft Office Updates

Most of the time, it happens that upgrading the MS Office to the latest version causes different runtime errors/issues in Access including the error code 3125.

Thus, if you have recently updated your MS Office to its latest version, you can simply try to rollback or downgrade the latest version. Doing this will assist you to return to the earlier version and solve error 3125.

Fix 5- Resolve Memory Leakage of MS Access

Using ODBC driver continuously to make connections between the MS Access and Access database (.mdb/.accdb) files might increase memory usage.

Nevertheless, the Microsoft Access database engine isn’t meant for the use of 24 hours server apps. But if you do so, this might result in different errors/issues in the MS Access including this.

Thereby, if you want to get rid of memory leakage, simply disable the start-up programs or reboot your PC twice or thrice.

Fix 6- Resolve Access Error 3125 Is Not a Valid Name by Repairing Corrupt Database

Corruption in the database file system may also cause this runtime error 3125 in Access. In that case, you can try the MS Access Compact & Repair tool to repair corrupted or damaged database files.

All you need to do is to follow the below steps and repair corrupted system database files:

• Launch Microsoft Access.
• After this, go to the File > Info
• Then, click on the Compact & Repair Database Tools.

• Now, choose the corrupted/damaged database file >> click OK.

After completing these steps, check if the “This is not a valid name. Make sure that it does not include invalid characters or punctuation and that is not too long” is fixed.

Also Read: Microsoft Access Error 32570

Fix 7- Use Best Tool to Repair Corrupt Access Database File

As mentioned above, corruption in the database system files can also result in MS Access runtime error 3125. Thus, if you are suspicious that the error is triggered due to system file corruption, it’s recommended you use a versatile MS Access Database Repair Tool to get rid of it.

This program thoroughly scans your PC with its advanced scanning algorithm and repairs corrupt/damaged database files effortlessly.

Besides, it has the ability to repair the corrupted .mdb & .accdb formats along with recovering all the Access database stuff such as forms, tables, macros, database relationships, reports, queries, constraints, and many more.

The best thing about this software is- You can use its trial version to see the preview of your recoverable database file.

* By clicking the Download button above and installing Stellar Repair for Access (14.8 MB), I acknowledge that I have read and agree to the End User License Agreement and Privacy Policy of this site.

So, without any delay, just download and install this Access Database Repair on your PC & follow its below user guide.

Final Thoughts

So, this is all about how to fix ‘This is not a valid name. Make sure that it does not include invalid characters or punctuation and that it is not too long’ error.

It’s estimated that by following the above-mentioned fixes you’re able to troubleshoot Access error 3125 is not a valid name.

Additionally, don’t forget to back up and restore the Access database before applying these methods.

Also, you can contact us on our Facebook or Twitter for further queries & doubts.