Hello miss Choco,
The reason for your problem is either your FlashDrive(USB) is corrupted or your USB drivers are out of date and are unable to detect your flashdrive
Possible Fixes:
-Format FlashDrive
-Update USB port drivers
-Attach to high speed USB port then format Flash Drive
Note:
If your Flash Drive is corrupted then it can't be used again, better purchase a new one. Since your from the PH, You can buy new flashdrives in CDR king for 200 php(not that expensive).
Give my regards to Nosajone
:smile: