• How to Fix One Drive Error: “This is not a valid file name” in Windows 10. As you know, Microsoft’s consumer cloud storage platform is none other than OneDrive. It is where users can save any of their files albeit it’s mostly used to store common files like documents and photos.
• The directory name is invalid while inserting an USB/HDD/SD Card This error may occur with any external storage media devices such as USB, HDD, SSD, and SD Card etc. To fix this error, there are a few methods that you may use. You may run Device Troubleshooter as mentioned above.

The directory name isn't valid. That I need it open today - Answered by a verified Microsoft Office Technician We use cookies to give you the best possible experience on our website. How to resolve Word error: The Document Name or Path Is Not Valid? What are the Signs that can occurs the error? How Can I Fix the error? Get the answers! Check the Administration System Initialization General Settings Path tab for the definition of a proper path to the Word directory. Help to improve this answer by adding a comment. If you have a different answer for this question, then please use the Your Answer form at the bottom of the page instead.

Note

Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.

Problem

Microsoft Word Directory Name Is Not Valid

When you create a user name that contains a special character in Microsoft Office 365, you receive one of the following error messages:

Within the Office 365 portal

Within Microsoft Azure Active Directory Module for Windows PowerShell

Within Exchange Online Windows PowerShell

Cause

This behavior occurs because certain special characters aren't permitted in user names that you create in the Office 365. These special characters include but aren't limited to the following:

However, the following exceptions apply:

• An underscore (_) is permitted anywhere in the user name. This includes at the beginning or end of the name.
• When creating a group, the number sign (#) can be used as part of the group's name. However, the email address you create for a distribution group or shared mailbox cannot use the # sign.

Solution

When you create a new user in Office 365, make sure that you don't use any of the special characters that are listed in the 'Cause' section.

Still need help? Go to Microsoft Community.

“I had a large size Word file created on Microsoft Office Word 2010 on my PC. Recently I stand to add some more content to that document. But, abrupt system shutdown due to power loss interrupted my editing work. After few minutes I started the system to continue with my work, but that Word document was showing error message “Word error file format or file extension is Not Valid”. Now, what to do? That Word file had huge information, I created that document with more efforts and it cannot be rewritten. So, please help me to find any best option to fix this corrupted Word file.”

Apart from providing convenient features, in some instances Microsoft Word application will display error messages as mentioned in above scenario. This error raveled due to harmful malware attack on the Windows system. Malwares may enter into system through unauthenticated application or browsing internet in unsafe zone. These malwares will modify the Word document file name with some unreadable letters or corrupt the DOC file content. In some scenarios, abrupt termination of MS Word file while saving it may also cause this error.

What are the necessary steps to fix Word file displaying “File format is not valid” error?

Remedy 1: Inbuilt Word files repair option on Microsoft Office

When any Word document get corrupt then first and foremost thing is to take copy of that inaccessible Word file. Later try using inbuilt repair option that can fix the issues with unreadable DOC file. To mend Word file just follow below steps:

Open Microsoft Office Word application -> Click on File button -> Later click on Open option -> Now, chose the Word document that needs to be repaired -> Then, click on the drop down mark beside Open option -> Select “Open and Repair” option. Your corrupt Word file will be fixed. If this will not work, then go for second remedy.

Microsoft Word The Directory Name Is Not Valid

Remedy 2: Yodot DOC Repair software:

Microsoft Word The Directory Name Is Not Valid Windows 10

When your Word document displays “Word error file format is not valid” error message and stops responding, then try using one of the most used word file repair utility from Yodot on your Windows system and fix the Word file error. This tool carefully fixes corrupt / damaged Word files. You can renovate broken Word document of DOC as well as DOCX file extensions created on Microsoft Word 2000, 2002, 2003, 2007 and 2010 versions without any trouble. Furthermore, the software supports to work on various Windows operating system (Windows 8, 7, Vista, XP, Windows Server 2003 and 2008) to fix Word files from hard drive, external hard drive, USB drive and other storage devices.

Steps to repair Word document showing error file format is not valid:

• Download and install Yodot DOC Repair software on your Windows desktop or laptop
• After installing, run the utility on the computer and follow the guiding instructions on main screen
• In the main screen, select the infected Word document that you wish to mend and click on “Repair” button
• You can view DOC file repairing process on progress bar
• After completion of repair procedure, application offers you with an option to preview description of renovated Word file before saving it
• Next browse for destination location where you desire to save the fixed Word document and click on “Save” button

Word The Directory Name Is Not Valid

Necessary instructions:

What Does It Mean When Microsoft Word Says The Directory Name Is Not Valid

• From first day you using system try to install it with genuine anti virus software and update it regularly
• Do not perform forceful system shutdown while accessing Word documents
• Backup essential Word files on some other storage devices