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This was most likely used as Mutsumi's profile picture when she took over Nanami's account sometime.

The full resolution of this was most likely not posted anywhere.

I really don't know if I should tag this with "1girl" or also count the other people.

Seems like someone got the idea of making a XP-tan in the style of that Windows XP Horror Edition video before me lol.

The person who posted this is probably not the cosplayer.
While searching for more OS-tan media to upload here, I found that the cosplayer might be Ai Nonaka.

Edit: The cosplayer is Ai Nonaka, confirmed here: https://seiyumemo.blog.jp/archives/8925978.html

The guy could represent the "user" but here was no information nowhere confirming that.

Got kinda surprised when I found this was drew by the same person who also drew this: post #599

[deleted]

QUEEN DOWN!

There may be a higher res version, but this may be all we have for now

Goujer said:

There may be a higher res version, but this may be all we have for now

I know, the full resolution could still be uploaded here: https://seiga.nicovideo.jp/user/illust/4273402

But I can't prove if the link still exist or not because I can't access that site. I get a message that the service is not avaiable in my country.

I have the XP-tan model! Are the Mac-tan and Sonata available somewhere for download?

Lily1027 said:

I have the XP-tan model! Are the Mac-tan and Sonata available somewhere for download?

God I hope so.

Goujer said:

God I hope so.

I will try to dig further and find some information about these models.

Lily1027 said:

I will try to dig further and find some information about these models.

So I digged further and I found that the models were either made by TechArts3D or made in a program or game that was made by TechArts3D. But I didn't found any information regarding the Mac-tan and Sonata models.

I don't really know if I should tag this character as Vienna, Blackcomb or both.

Worshiping

Replaced with much higher quality version found on Danbooru

Here is actually a full resolution of this (the original version had also artist link but this was cropped here), but it is in jpg and kinda low quality.

I found this by looking on Twitter for Madobe Nanami related stuff. It wasn't been posted by the original artist there.

Another version of this Ruri Azumi art, most likely alternative, third-party edited, or unfinished that was later finished into the one I uploaded earlier. I also think higher resolution of this could be lost media.

Can't tell if she looks surprised or shocked.

I always thought that the injetion was supposed to be an antivirus program or something, most likely Windows Defender.

Mutsumi is that you?

Goujer said:

Mutsumi is that you?

My words when I first saw that lol.
I think these are prototype hair designs for Nanami, and that Mutsumi's hairstyle was later based on one of Nanami's scrapped hair designs.

This is actually a third-party edit made by me because the original file of this is most likely lost media.