user10415: I am recording my computer screen which updates once a minute. I want to record for around 8-12 hours uninterrupted, and I would prefer not to compress the video because the details are very fine and any grainy pixelation would potentially make the video unreadable. 
Is there any (preferably free) software I can use which records at 1/60fps and can output a lossless (or very close to that) format?

user10410: OBS is what I use to record my screen. It is mainly for streaming to websites like twitch but they put a functionality of recording the stream as its going that records in lossless. Also you don't need to be streaming to record. Better than any program I have ever used, it's free, and you can change the frame rate!

Note: look up on YouTube how to setup your desktop for capture

user3295: Fraps also allows you to record at any frame rate you want.
Though the free version has watermarks in its recordings.

user10415: AutoScreenRecorder (currently version 3.1) appears to allow you to record as low as 1 frame per minute in the Pro version only (the free version does not allow altering the framerate).

10415: 

<p>I am recording my computer screen which updates once a minute. I want to record for around 8-12 hours uninterrupted, and I would prefer not to compress the video because the details are very fine and any grainy pixelation would potentially make the video unreadable. </p>

<p>Is there any (preferably free) software I can use which records at 1/60fps and can output a lossless (or very close to that) format?</p>
 10410: <p><a href="https://obsproject.com" rel="nofollow noreferrer">OBS</a> is what I use to record my screen. It is mainly for streaming to websites like twitch but they put a functionality of recording the stream as its going that records in lossless. Also you don't need to be streaming to record. Better than any program I have ever used, it's free, and you can change the frame rate!
<img src="https://i.stack.imgur.com/J7pg6.jpg" alt="Picture I found on google of the frame rate highlighted"></p>

<p>Note: look up on YouTube how to setup your desktop for capture</p>
 3295: <p><a href="http://www.fraps.com/download.php" rel="nofollow">Fraps</a> also allows you to record at any frame rate you want.
Though the free version has watermarks in its recordings.</p>
 10415: <p><a href="http://www.wisdom-soft.com/products/autoscreenrecorder_free.htm" rel="nofollow">AutoScreenRecorder</a> (currently version 3.1) appears to allow you to record as low as 1 frame per minute in the Pro version only (the free version does not allow altering the framerate).</p>
