因为我的电脑感染了病毒, 英语怎么说?

1,My computer has infected virus, so I have to reinstall system, but the computer maintainer didn't keep my C disc data.my boss let me to keep D disc of, because of the data of the company all in the D disc,
I went out at the moment...
2 , You need to match to chase key

盘是disc,楼上的

you need a key

1 because my computer infected the virus, therefore must the rewiring system, but the computer serviceman has not preserved my C plate the material. Boss only let preserve the D plate, because of company's material all in the D plate, I at that time happen to exited…
2, you need to match a key

1sadasd sadasd the D plate, because of company's material all in the D plate, I at that time happen to exited…
2, you need to match a key
dasdasdasdasdas

1>My computer infected virus, so have to rebind system, but the computer maintain the data that the personnel didn't keep my C dish.. Owner's let to keep D dish of,