I do read all the comments that come in here on the blog. Would you have any idea where to look for the cause? Unfortunately, the only references on the net and in the forums are to disabling anti-virus software for a short time, which did not work with the only Microsoft Defender installed. Nevertheless, since the release on April patchday, cumulative update KB5001330 aborts with error code 0x80073701 after prolonged installation attempts with lingering at 20%, 44% and 100%. My notebook does not have a graphics card from Nvidia, only an Intel OnBoard graphics. Upgrade throws installation error 0x80073701īack in April 2021, the blog reader had posted a comment on the German blog post Windows 10: Fix für Grafikprobleme bei Spielen nach April-Update, complaining about the 0x80073701 error in the monthly cumulative updates. This at least gives me a way to break things down a bit. At this point, in any case, my thanks to the blog reader for sending me the information. Because on the basis of the described installation errors I probably would have been led in the wrong direction (I have to be careful, because I did not have the system in my fingers and have to make do with the details that are available to me by comment). I'm going to present the case chronologically, maybe it will help one or the other affected person in similar scenarios.

0x80073701 windows 10 version 20h2