Like any other file format, a WMV file can also be damaged and get corrupted which makes it unplayable. There can be several reasons for a WMV file to get corrupt and some of the major ones are enlisted below.
Attack by a virus: This mostly happens when a non-secured site is visited or a downloaded software gets cracked. A virus-infected file in the system can also lead to the corruption of WMV files.
If there is an abrupt shutdown of the system during the download or transfer process, it might result in corrupt WMV files.
Interrupted downloads due to unstable connections or other interruptions can also result in missing blocks of data and thus file corruption.
Removing the file extension .wmv will also lead to file corruption and thus the files will not play.
Using outdated PC drivers would also lead to issues in playing the file.
If the conversion of the video formats is not correct, the WMV file will be corrupted.
If there is corruption in the storage drive, the WMV file will be corrupted.
If there are any conflicts in the commands while you are playing the video, will lead to issues.
An incompatible media player is another reason for your WMV files not playing.