Quite often, many users are faced with the fact that a video downloaded from the Internet looks somewhat inconvenient for viewing only because it is rotated by a certain angle. Below it is proposed to consider the main ways that can solve the problem of how to turn the video 90 or 180 degrees. In principle, to do this in any Windows-system is completely elementary, however, several alternative options can be offered that allow rotation to be made at angles other than standard values. This applies not only to stationary, but also to mobile systems, in which, however, the resolution of such a problem is greatly simplified (we will discuss this later).
How to rotate a video 90 degrees? Windows 7: different ways
Frame editing issues are inextricably linked to several types of programs. In the simplest case, you can rotate the video 90 degrees in Windows 7 or any other system directly when playing a file with any known player.
However, not all applications of this type are capable of maintaining a rotated image so that it subsequently reproduces in the desired mode. In such cases, you will have to turn to at least the simplest video editing utilities with subsequent saving. In addition, the settings of some video cards or setting the screen parameters in the system itself can also solve this problem. Consider all the options.
How to rotate a video 90 degrees while watching?
As you know, any Windows system has a default player (Media Player). In modern systems, the classic player is missing, and instead an updated development is used.
How to flip a video on a Windows 7 computer? Easy peasy. After opening the file and starting playback, you can use the most common context menu, called through RMB on the image where the desired rotation is selected. But you should not discount the special settings of hot keys, which allow you to refuse to call various kinds of menus and settings. So, for example, you can flip the reproduced frame 180 degrees through the combination of Ctrl + Alt while pressing the up arrow. 90 degrees to the right or left is performed with the same initial combination, but the corresponding arrows are additionally used.
A similar option is to use the Alt key in combination with a numeric keypad (if any). But the use of this player, as well as the classic player described below, is impractical not even because it does not preserve the image, but only because it is extremely limited in recognizable and reproducible formats.
Windows Media Player Classic
There is no classic player in recent versions of Windows. You can download it directly on the official Microsoft resource. If you want, you can download a whole media complex called Media Center. Actions that allow you to rotate the video 90 degrees in Windows 7 or any other modification of the system when using these tools will not differ much.
In addition to the above combinations, you can take advantage of special settings, where it is supposed to set your own keyboard shortcuts for quick rotation, image resizing, etc.
Screen orientation
Not all users are aware that turning a video 90 degrees in Windows 7 and other systems can be quite simple by setting the appropriate screen settings.
You can do this through the personalization menu or by selecting the screen resolution (monitor) settings, where you just need to set the landscape or portrait orientation (or inverted patterns). The method is quite inconvenient, since the required video will play as expected, but files with a standard orientation will be turned upside down. For such cases, it is better to use other methods.
Graphics Settings
Many video cards can also rotate video 90 degrees. Windows 7 is used or any other OS, it does not play a special role here.
It is important to understand only that the setting of the relevant parameters mainly relates to the screen options in the operating system itself and is duplicated by the application for managing the graphics adapter (although if additional control programs are available, advanced parameters may appear that are not available in the standard OS options). Basically, this is not about integrated chips, but about NVIDIA and Radeon video cards. Built-in video cards do not even have such settings even in DirectX options.
VLC player
As for the players, the VLC player is worth mentioning separately. Not only is it capable of reproducing almost all known audio and video formats, image rotation in it is very simple.
To carry out such actions, it is necessary to open the adjustment of filters and effects in the tool menu, and then put a checkmark in front of the turning point. To get quick access to such an option, you can set your own key combination according to the way it is done in the classic Windows player.
By the way, the question of how to quickly flip the video on a computer and phone using a player of any type varies quite a lot. If the rotation sensor is turned on on the mobile device, just put the device in the appropriate position, and the rotation will happen automatically. But with computers or laptops, such actions do not work.
Video rotation and saving in standard system programs
But let's look at how to rotate a video 90 degrees and save. Since standard players do not have such an opportunity, it is better to use video editing programs before opening the file.

As the simplest tool, the same Movie Maker or "Film Studio" is suitable. After opening the file, you can use two buttons, indicated by the left and right arrows, successive pressing of which turns the image in a given direction by an angle multiple of 90 degrees. Actually, after that you just need to save the open object under a new name or use quick save (Ctrl + S). The only drawback of this application is that it has limitations on the perceived formats, and it simply will not work to open some files. This is especially true for new formats like FLV. Unfortunately, "native" Windows programs can recognize only the most common uncompressed formats, and orientation is mainly done on standard Windows-system files. Of course, you can initially use some kind of converter and convert the original video into a Windows-understandable format. But is it worth it to engage in such actions, if there is a simpler solution to the problem?
Using third-party development
And the most effective are professional software packages for video processing.
You can find a lot of them today. If the user has at least primary skills in working with such tools, you can recommend the most powerful Sony Vegas Pro program. Utilities of such a plan, unlike all other tools, allow you to choose an arbitrary angle of rotation, and not just go over multiple values โโof 90 degrees. The advantage is that along the way, you can specify the application of various effects or use smoothing, which can occur when setting the rotation.
Even some audio editors like Sound Forge can edit imported videos. At the same time, the applied settings look very diverse. You can change not only the position of the picture relative to the screen, but also change the frame rate (fps). And this is not talking about the fact that the original sound changes in all respects.
Conclusion
As a result, it remains to add that any person should clearly understand the task. Depending on whether he wants to rotate the image when viewing, or save it after performing such actions, the methods used will be completely different. But which of the above is the most practical option? It seems that one-time operations when watching a video can be applied only if further storage is not provided. Changing the screen settings is also not recommended, because then even the interface of the operating system will look different. There remains only the use of editors with the further opening of the saved files in the players. If you are not able to work with professional utilities, there is nothing to worry about using the simplest programs of the system itself. If you learn how to use them, then you can move on to more complex packages and fine-tuning. Needless to say, that they are in most cases given preference?