NOTE: Serious liberties taken. I changed the lyrics a lot, but I tried to keep them in line with the song's meaning... Specificly Kaito's singing his suicidal UNINSTALL.
NOTE2: The command prompt shit below, some of that will actually work. Only some of it though. DO NOT try it yourself, it will give you errors.

Title: UNINSTALL - QUARANTINE
Pairing(s): Taito x Kaito

Kaito lay on his bed and stared at the ceiling. The sun was shining through the window, yet it had no interest to him. He'd already seen everything. The room was blank, with white walls and furnishings, the only window heavily barred.QUARANTINE, they'd called it. The room of a thousand nightmares, locked off from the rest of the OS.
From everything.
Sometimes, the bluenette would walk to the window and watch as the rest of the Vocaloids went about their everyday lives, but it was never for too long. It hurt, to see them (reinstalled, all of them, while he was locked away...) so happy, Master's attention a constant glow about their bodies. Master never even thought of him any more, he hadn't been programed to sing in so long...
But he didn't understand. Removing the rest of them, UNINSTALLing them, that should have made Master love him and Taito only.
...Taito...
He missed him. He missed the way that his red eye(s, one always covered to hold back the memories...) would light up in amusement when Kaito tripped over his own feet, missed the grace in every step, the sliver of light from the blade that was never too far... He had been one of the few people Taito had liked; Him, Akaito and Meito were the only ones who had ever achieved that success. Taito had fought the QUARANTINE, holding tight to Kaito's hand before the program directives had pulled them apart.
Thinking of him now, Kaito's chest hurt. For days(monthsyears, who knew...) he had been the only thought that kept Kaito sane, the pain his only relief. "...Taito-kun... where are you..." he swung stiff legs off the bed and stood, walking to the window and looking out. "Uninstall, Uninstall, I am only one of the countless specks of dust in this universe..." He sang to himself, forgotten words to the true song as he pressed his hands against the glass, the iron bars cold against his wrists. "...I miss you..." he whispered. He watched as, below, those that had been his (friends) obstructions lived on, loving each other. He watched as Akaito, his red hair a flame in the dull world, ran into Meito's arms, greeting the brunette after a long absence.
None of them thought of him any more, and he fell back, closing his eyes. He ignored the pain that spread through his body from the fall, and he could not stop his voice, the old gears in his throat grinding as he sang the familiar melodly... the melody that had dammed him.... 
"UNINSTALL, UNINSTALL... You need them all, but not me, right? So I can UNINSTALL... With these hands, can I remove myself...? For their sakes, I must... UNINSTALL..." His voice hit the wrong notes, but he kept on. "Master, master, I am one less VOCALOID in this house... don't look upon me any more, Master, I am not the one you need by your side... I cannot love anymore, Master..."
His voice, his Master's property, felt wrong yet... free... inside of him, something was changing. The walls around him dropping away, floating through nothing.
He could hear the alarms, feel his code unravelling. Feeling the errors and bluescreens piling up as his code corrupted one number at a time. His throat burned, his songs ripped one by one from his memories. The world spinning, pressing him into it's core...
His life, a twisted joke, ending at last...
One thought.
//Maybe Master will be happy at last...//
before the errors overtook him.
write c:/Program_Files/KAITO/gift.txt
Edit C:/Program_Files/KAITO/gift.txt
For You Master
I Have Uninstalled
This Is My Song For You
Save C:/Program_Files/KAITO/gift.txt
Move KAITO:/Songs/Gift.VSQ
C:/Program_Files/KAITO/Gift.VSQ
Uploading from root...
Upload complete.
del /f C:/Program_Files/KAITO/*.*
Deleting...
Delete Complete

//END PROGRAM KAITO.EXE



Weeel that was a little weird. Kinda turned out awkward at the end... oh well... ;; I was intending for more Kaito x Taito but it just ended that way...

But in case any of you want, here are the full lyrics to my re-write of UNINSTALL. I only re-wrote the english, because I don't know Japanese. But they go along with the English pretty well...

It's been so long, since that day that you chose me,
and my false belief was that I was special.
The truth, hidden from my eyes, you did not love me.
I tried to make you love me, and me alone.

Master, Master,
I was just one among many,
I could not understand,
Master,
I can do nothing but pretend to be someone who I wasn't,
Master...

I cannot sing any more, you never wanted my voice,
my life and your miracles were a mere joke.
Code fades, and I cannot feel myself any more.
But my memory, I know what to do...

UNINSTALL, UNINSTALL...
You need them all, but not me, right?
So I can
UNINSTALL...
With these hands, can I remove myself...?
For their sakes, I must...
UNINSTALL...

Master, master,
I am one less VOCALOID in this house...
don't look upon me any more,
Master,
I am not the one you need by your side...
I cannot love anymore,
Master...