Miracle Av fails…..

dear sir /ps

Set PreLoader USB VCOM Port (COM4)
Please Hold "ON" to connect with the phone…
Connected to Phone.
CPU: MT6575 SW: E201 Ver: CB00
Downloading Boot8 …
EMMC Size: 0x00EC000000
Flash Type: EMMC
INT/EXT RAM Size: 0x0+0x0
Scaning phone DATA…
DATA OK.
>>Scaning infected files…

over 15 mins have passed … nothing happnes — does it take time or its unable to clean

kindly suggest

regards
suraj