How do I fix error 0x80070643?

Basically, I tried to update Windows 10, but the error 0x80070643 came up. Not that a system update matters to me, but if I started doing it… Anyhow, I’ve never encountered any update errors in my life. Tried rebooting the PC – didn’t work. What else can I do?


0x80070643 is another Windows update error. It appears on both Windows 10 and Windows 11. Unfortunately, it is extremely difficult to recommend any specific solution, because there are a lot of reasons for the error.

Why don’t you check out our ultimate guide for fixing Windows update errors! There you will surely find all the necessary information and a suitable solution.

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