Windows 10 last update failing (0xc1900200)? Is my system partion too small?

tabs81

Prominent
Oct 27, 2017
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Hey guys,

At a bit of a loss here.
My computer is about a year old, no problems whatsoever.

Since a few weeks back windows update is constantly failing to apply the latest updates.
It just says "something went wrong" and the error code 0xc1900200.
I've downloaded the windows update assistant, same thing.

I've looked around a bit and I suspect that the system partion might be too small (100 mb).
I have tried to extend it using diskmgmt.msc and MiniToolPartitoner to 500 mb, but it wont let me.

It's greyed out in diskmgmt and in MiniTool it simply says not enough free space (even though I have freed up 400 mb of unallocated space).

Any help would be greatly appreciated guys...
https://imgur.com/a/issIU

Also, for some reason it seems that the 100 mb system partition is FAT32 whereas the rest of C: is NTFS?