Why does windows movie maker freeze when you import a wmv video?

Windows Movie Maker may freeze when importing a WMV video due to compatibility issues, corrupted files, or insufficient system resources. If the WMV file is encoded with codecs that Movie Maker does not support or if the video file is damaged, this can lead to freezing. Additionally, if your computer lacks adequate RAM or processing power, it might struggle to handle the video import. Updating the software or converting the video to a different format can help resolve these issues.