dual-booting windows and fedora

asked 2015-03-01 06:22:02 -0600

bry6673
117 ●4 ●5 ●11

updated 2015-03-01 11:29:50 -0600

mether
7061 ●43 ●67 ●111 https://fedoraproject....

I am dual-booting Windows Vista and Fedora 21. I followed these steps in order:

Install Windows Vista
Install Fedora 21

Now when I boot up and select Windows from the GRUB select screen, I get the following message: Bootsector Write!! VIRUS: Continue (Y/N)

It displays the message every time I select Windows and I need to press Y to continue. I don't think it's a virus. I know that I can probably turn it off somewhere in the BIOS settings.

However, I'm just wondering why this is happening. I've dual-booted Windows and Linux before and I've never seen this message.

Why is this happening all of a sudden? Is there any way to check the integrity of the MBR?

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If this happens after GRUB loads, I don't think it's a BIOS thing. The BIOS has already handed off control of the system by that point.

When you say "all of a sudden" does that mean you had this dual boot situation for a while, then the message appeared, or did you recently reinstall both OSes and immediately see the message?

randomuser ( 2015-03-01 14:11:33 -0600 )edit

I've only seen this message after recently reinstalling both OSes. I've tried to reinstall multiple times but the message always appears.

bry6673 ( 2015-03-02 23:47:58 -0600 )edit

Haven't been able to find anything on this, is there anything I can do?

bry6673 ( 2015-03-08 13:22:24 -0600 )edit

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answered 2015-03-09 10:36:36 -0600

darakus
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I don't know the exact issue, but something has detected that the way your computer is booting has changed (you changed it by installing the operating systems). By the looks of the message, I would guess it is whatever antivirus you are running on windows. I know thats not much help but it's my two cents.

You can check the integrity of your MBR on windows by running the program aswmbr. It is from avast and you can also run its antivirus/rootkit scan if you want to. Good luck.

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answered 2015-03-08 23:42:09 -0600

jrock
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If you think it might be a virus and have Norton for your Windows setup, you can enable Boot Time protection under settings - antivirus - automatic protection.

According to their website, setting this mode to Aggressive does the following:

Lets you configure Norton Security Suite to perform maximum protection during your computer start time. It ensures complete protection during the boot time as Auto-Protect starts functioning as soon as you start your computer.

Until you get more answers from the folks on the forums, it's at least something to consider.

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dual-booting windows and fedora

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