Improvise, click it manually or ask for help from someone in the audience and most importantly keep your enthusiasm up high. Remember enthusiasm overcomes most mistakes!

First things first—I’d acknowledge the situation with a smile and maybe even a light joke. Almost everyone’s been there, right? Something like, “Of course, my clicker decides to take a break at the most important part!” Humor helps break the tension and keeps the audience engaged. Then, I’d smoothly transition into plan B, either walking over to manually advance the slides or continuing without them. If I know my content well (which I should!), I can keep the energy going and focus on the key takeaways. At the end of the day, it’s not about the slides, it’s about connecting with the audience and making the message stick.

NIGHTMARE (not)!! It happens! It’s not the end of the world. A quick pivot—either walk over to manually transition the slide or use the moment to engage the audience with a question or comment while you sort it out. Keep calm, stay in control, and roll with it. 1) Stay calm and composed. Don’t let a technical glitch rattle you... take a deep breath and keep your tone confident. If you are comfortable to use humour, please do! 2) Engage the audience. Use the opportunity to ask a question, share an anecdote, or reinforce a key point while you manually advance the slides. 3) Have a backup plan. Always know how to manually control the slides or have a printout of key points in case the tech fails.

Stay calm. Don't panic! Keep engaging the audience, maintaining your confidence and poise. Acknowledge the issue light-heartedly and use it as an opportunity to show adaptability. Manually transition the slides using the keyboard or ask someone to assist you to do that if available. Have a backup plan in mind before the presentation. For example, some presentation apps such as Google Slides, Microsoft Powerpoint, Prezi, etc offer smartphone control as alternative. Ultimately, rely on your content knowledge and focus on delivering your message. Your audience may not even notice the glitch.

I've been there! During a critical presentation, my remote clicker failed, leaving me stuck on a slide. I stayed calm and quickly adapted. I politely asked a nearby audience member to assist me with advancing the slides. Meanwhile, I seamlessly transitioned to a brief storytelling or anecdote, using the pause to engage the audience and maintain momentum. Once the slide issue was resolved, I smoothly resumed my presentation. To avoid future mishaps, I now carry a backup clicker, ensure my laptop's keyboard is accessible, and have a contingency plan in place. This experience taught me to anticipate technical glitches and think on my feet.

Stay calm. Your focus is on your audience and your material, not your slides or technology. If a clicker fails or a mic fails, remain light-hearted, make a joke, and keep going. If possible, have a plan B in mind before you need it such as: Have your laptop on the podium where you can advance slides as you speak. Have a team member help with the slides while you continue. Forget the slides and keep the audience engaged through stories, referring to handouts, or audience involvement. If you stay calm and composed, your audience will stay with you. Focusing on what they need rather than how you wanted the talk to go will make the message memorable without the visuals.

@Jacob Roig's answer is a really good answer. Enthusiasm is imperative when presenting. Apart from that, there are two ways that I would suggest coming back from this. Either make your way to your computer while saying something that hints towards your next slide without saying it. This could be beneficial for your presentation overall. The other way: make a joke about it if appropriate. All people have had technological glitches during presentations, and they will usually not care that it also happens to you.

Hopefully if you prepaired your contingancy in advance, you will just take a little step to the left and press the enter key on your keyboard and noone will notice that anything happened. Stay calm and (if appropriate) make light of it. and keep people informed eg "it looks like all the magic has leaked out of my clicker, thank you for your patience while I try a few things (make eye contact with the person who might be helpful at getting some batteries for you) and just check if you were fidgeting with the switch that switches off the clicker to conserver battery power.