PDU File Extension

What is PDU file?

PDU is a file extension commonly associated with Protocol Data Unit Message files. Files with PDU extension may be used by programs distributed for Linux, Mac OS, Windows platform. Files with PDU extension are categorized as Document Files files. The Document Files subset comprises 574 various file formats. Windows Notepad supports PDU files and is the most frequently used program to handle such files, yet 3 other tools may also be used. Windows Notepad software was developed by Microsoft Corporation, and on its official website you may find more information about PDU files or the Windows Notepad software program.

Programs which support PDU file extension

The following list contains programs grouped by 3 operating systems that support PDU files. Files with PDU suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

How to open file with PDU extension?

There can be multiple causes why you have problems with opening PDU files on given system. On the bright side, the most encountered issues pertaining to Protocol Data Unit Message files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The list below will guide you through the process of addressing the encountered problem.

Step 1. Download and install Windows Notepad

The most common reason for such problems is the lack of proper applications that supports PDU files installed on the system. The most obvious solution is to download and install Windows Notepad or one to the listed programs: TextEdit, gedit, NotePad++ text editor. Above you will find a complete listing of programs that support PDU files, classified according to system platforms for which they are available. The safest method of downloading Windows Notepad installed is by going to developer’s website (Microsoft Corporation) and downloading the software using provided links.

Step 2. Check the version of Windows Notepad and update if needed

If the problems with opening PDU files still occur even after installing Windows Notepad, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Windows Notepad is available. Software developers may implement support for more modern file formats in updated versions of their products. This can be one of the causes why PDU files are not compatible with Windows Notepad. The latest version of Windows Notepad should support all file formats that where compatible with older versions of the software.

Step 3. Associate Protocol Data Unit Message files with Windows Notepad

If you have the latest version of Windows Notepad installed and the problem persists, select it as the default program to be used to manage PDU on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Selecting the first-choice application in Windows

• Right-click the PDU file and choose Open with option
• Click Choose another app and then select More apps option
• Finally select Look for another app on this PC, point to the folder where Windows Notepad is installed, check the Always use this app to open PDU files box and conform your selection by clicking OK button

Selecting the first-choice application in Mac OS

• From the drop-down menu, accessed by clicking the file with PDU extension, select Information
• Proceed to the Open with section. If its closed, click the title to access available options
• Select the appropriate software and save your settings by clicking Change all
• A message window should appear informing that This change will be applied to all files with PDU extension. By clicking Continue you confirm your selection.

Step 4. Verify that the PDU is not faulty

Should the problem still occur after following steps 1-3, check if the PDU file is valid. It is probable that the file is corrupted and thus cannot be accessed.

1. Check the PDU file for viruses or malware

If the PDU is indeed infected, it is possible that the malware is blocking it from opening. Scan the PDU file as well as your computer for malware or viruses. If the PDU file is indeed infected follow the instructions below.

2. Check whether the file is corrupted or damaged

If you obtained the problematic PDU file from a third party, ask them to supply you with another copy. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. It could happen the the download process of file with PDU extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

Some files require elevated access rights to open them. Log in using an administrative account and see If this solves the problem.

4. Make sure that the system has sufficient resources to run Windows Notepad

If the system is under havy load, it may not be able to handle the program that you use to open files with PDU extension. In this case close the other applications.

5. Check if you have the latest updates to the operating system and drivers

Latest versions of programs and drivers may help you solve problems with Protocol Data Unit Message files and ensure security of your device and operating system. It is possible that one of the available system or driver updates may solve the problems with PDU files affecting older versions of given software.

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