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Fix MS PowerPoint Error 400645


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Microsoft PowerPoint is a well-known and most used application for creating presentation slides, which is develop and marketed by Microsoft Corporation. It is widely used all around the world due to its inbuilt features like adding text with various fonts, images, tables, animations and more effects to make slides more attractive. It generates various formats of slides such as PPT, PPTX and PPS file. PowerPoint helps you to visually interpret the ideas of presenter in sliding view. A presentation may contain large number of pages, which may take a lot of times to make a good presentation.

Being large and complex in structure these presentation files prone to corruption. After corruption, PowerPoint file will not be accessible and refuse to open. Assume that you are trying to open your presentation file; it refuses to open and pop up with error message “PowerPoint found unreadable content in Presentation.pptx/.pps/.ppt. Do you want to recover the contents of this presentation? If you trust the source of this presentation, click yes.” After clicking the number 400645 appears in the lower right corner of this message. As these slides are very important, corruption of such PowerPoint file may freak you out.

There are many reasons which may lead to corruption of PowerPoint slide, in such situation there is only option to use third party tool to repair PowerPoint file. But as these files are so important you should opt reliable and trusted repair tool which can fix Microsoft PowerPoint error 400645 and other errors including corruption of PPT files. Repair PowerPoint software is one of the most used repairing tools to fix corrupt PPT, which has read-only, smart and powerful algorithm which scans and extract the information from corrupted PPT/PPTX/PPS file and create new PowerPoint file after repairing Microsoft PowerPoint error 400645. This utility can be used to repair PPT 2000 and above versions of PPT files.

Common causes of error 400645:

  • Incomplete Download: If there comes some error while downloading PPT/PPS/PPTX files from internet, PowerPoint files may get corrupted and thus will refuse to open.
  • Round Trip: Converting PPT file to any other format and trying to reconvert as PowerPoint file may lead to corruption of PPT files.
  • Abruptly Termination of Application: Terminating improperly way of the PowerPoint application while accessing slides may corrupt the slides and will not be accessible.
  • Virus Attack: Viruses are the unwanted programs which always try to modify programs and files. Once they get into your PC causing corruption of data including PPT files.
  • Other Reasons: Besides above mentioned reasons there are many reasons which may damage PowerPoint Slides such as file system corruption, improper installation, interruption while transferring, etc.
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Requirements: Microsoft Windows 7, Windows Vista, Windows XP, Windows 2003 and Windows 2008

Features of Repair PowerPoint Tool

Repair PowerPoint software is designed with powerful read-only algorithm which is capable enough to fix damage PPT files with severe corruption. This utility can be used in all popular operating system including Windows 8, Windows 7, Windows XP, Windows Vista, Windows 2003 and Windows 2008. It will repair all type of PowerPoint files PPT, PPS and PPTX file. You can use this utility to fix PowerPoint file 2013 and other version of PowerPoint including PowerPoint2010, 2007 and PowerPoint 2000. After finishing repairing process you can preview PowerPoint file with all its content.

Steps to fix Microsoft PowerPoint error 400645:

Step 1: Download and install the free trial version of PPT Repair program. Then, launch the application by double clicking the desktop icon. The main screen will be appear as shown in Fig 1.

Fix Microsoft PowerPoint Error 400645 - Main Screen

Figure 1: Main Screen

Step 2: Now, choose your PowerPoint file which needs to be repaired using "Browse" option and then click on "Repair" button as shown in Fig 2.

Repairing Microsoft PowerPoint Error 400645 - Repair File

Figure 2: Select PowerPoint File

Step 3: The software will scan your selected file and starts the repairing process. Once the repair process is finished you would be able to preview the fixed PPT file using the "Preview" option as shown in Fig 3.

Fix Corrupt PPT- Preview File

Figure 3 : Preview Repaired PowerPoint File

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Requirements: Microsoft Windows 7, Windows Vista, Windows XP, Windows 2003 and Windows 2008

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