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I have Ubuntu 13.10 64-bit on my flash drive, and it is not detected by my PC's BIOS. Can anyone help? I really want to get Ubuntu back. (I recently deleted its partition and reset Windows 7's boot manager, and when I have the USB set as primary, it just goes straight to the Windows login screen.

System info:
⠀OS: Windows 7 Ultimate 64-bit, Service Pack One (trying to dual boot with Ubuntu)
⠀RAM: 4 GB
⠀Processor: Intel Pentium CPU B980 @ 2.40GHz 2.40 GHz
⠀GPU: Intel HD Graphics
⠀DVD/CD-ROM (Driver): TSSTcorp CDDVDW SN-208AB ATA Device
⠀I have the Intel Chipset
⠀Model: Toshiba Satellite: C855-S5349

I almost prefer Ubuntu over Windows (speed-wise). Let me know if you need any more information. Can you please help me with this issue? Thanks in advance!

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how did you make your USB installer? I would suggest making it with unetbootin (unetbootin.sourceforge.net) –  zeitue Mar 30 '14 at 5:43

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