Fix 2: Adobe Spark Might Be The Best Option
Adobe Spark is the best third-party alternative out there to handle such kinds of issues quickly and efficiently. That’s the reason why we recommend this third-party application for your Video trimming needs. Adobe Spark is prosperously designed to create visual content that can be used for businesses, social media, education, projects, etc.

The best part of Adobe Spark is its simplistic UI, or we say user interface. The end-results of Adobe Spark look attractive and seamless. So, you may try this overwhelming application if you want.
Fix 3: Activate your Office 365 Software
You need first to make sure your office 365 subscription is active inside the application. To do so, follow the steps given below and activate your Office 365 software.

- Firstly, open any browser that you have and visit the Services and Subscriptions page of Office 365.
- After that, what you really need to do is simply Sign in to your Office 365 account by using the Microsoft account credentials.
- Now, read the details found under the Service & Subscription option. However, if you see the circle arrow icon, it means that your subscription is set to renew automatically.
- In case you won’t see any subscription icon there, it means the error is occurred due to this an inactive Office 365, and you need to buy an office subscription to activate it again.
When you are done with buying a subscription, open your PowerPoint and trim your project videos.
Fix 4: Use the Set Option
Before starting with this fix, remember this fix only work only if you have the PowerPoint 2016 version. By the method mentioned below, you will able to bypass the Trim video option. So, let’s see how you will use the settings option on your PowerPoint 2016.

- First of all, open the PowerPoint and go to Video Tool.
- A new window appears. You need to tap on the Set option and drag the markers to your relished location.
- Now, simply click on the Trim.
- After that, you’ll see your desired video file is started to trimming on your preferable size.
If none of these optimes works for you, then I recommend you to try to reinstall the software or activate it using the software key. Also, these might be a bug or some other technical difficulty which definitely will be solved by developers in an upcoming update. In such a scenario, my advice to you will be to use online video editing websites to crop the video and then import them into your ppt presentation.
Conclusion
There are many reasons causing this type of issue in PowerPoint. Sometimes just changing some of your PC settings will quickly resolve most of the problems. We recommend if you are an office person and regularly need to present a video presentation, then always use an official paid version of Office 365 instead of any unofficial or tweaked version.