Missing Mass Storage Driver, Can't Install Windows.

Hello,

I am helping out a friend by fixing their computer. I am in a situation where I was requested to remove any virus that surfaced and update the OS fully once finished. At this point the computer was working fully. Until...

I ran a couple of quick scans, one was "ComboFix" and the other "Adwcleaner".

- Both scans concluded with finding heavy viruses/adware, which were removed
later upon my request.

One I felt that was out of the way, I started to update the OS, which took a while, having that the RAM on this computer is very low.

- Now during this phase, adware started to pop-up out of nowhere, asking me
to install 3rd party software, which I denied repeatedly.

- Programs like "Search Protect" were automatically being installed without
permission. So I kept uninstalling them, again and again.

- After a few installations from Windows Update, the computer had to reset.
Now at this point, all went to shit.

Now every time I pass the loading bar at the start-up screen, I get shot back with the computer resetting.

After a few times of that, a black screen displays a list of 2 options, one is
"Start Windows Normally" and the other is "Repair". None of them work
properly.

- The repair option allows me to use a list of tools that I can use to recover an
image or repair a problem, etc. But all undoubtedly require a Mass Storage
Driver, which is missing. This is the only issue preventing me from moving
forward.

Currently I am trying to wipe the computer entirely and start with a fresh installation (My friend does not mind).

- I have the Installation files put on to a USB flash drive properly.

But that won't even work having that there's no Disk to format or overwrite.

Is there any solution to this? Thanks in advance.

Computer Specifications:

Name: ACER Aspire One
Model: KAV60 or AOD250
RAM: 1GB
OS: Windows 7 32-bit (Starter)
USB Slots: 3 in total (All 2.0)