Some files could not be scanned - device is not ready (21)

Viruses and worms
1

This issue is very similar to posting “Some files could not be scanned” (topic=90883.0)

About 2 weeks ago I got an ‘extortion’ message stating that
computer is infected and I need to call some phone number to get the service.
Hard rebooted and ran Avast full scan.
Get results in the end that some files cannot be read:

Disk \?\Volume{78287502-720b-11df-b39a-806e6f6e6963} Boot Record Error: The device is not ready (21)
Volume{78287502-720b-11df-b39a-806e6f6e6963} Error: The device is not ready (21)

As I worked with the machine it was degrading in front of me, i.e. telling me that I do not have a valid version of Windows,
which is not true.

I have 2 partitions on my single physical drive C: - for installations, and D: for files. (Also have some 100MB partition without a drive letter.)
Restored the C: partition from a backup I did 11/17/2012 using Paragon Backup & Recovery v10.2 Free edition.
(The backup included the 1st record, MBR, and partition without a drive letter).
I used this trick before couple of time with good success.
Proceeded with all updates of Avast and Windows 7 as prompted, only to find out that the dreaded 2 lines are still there.
NOTE: I did not ran Avast immediately after restore.

Now, each scan produces the following log with the message “Some files cannot be scanned”:
Disk \?\Volume{78287502-720b-11df-b39a-806e6f6e6963} Boot Record Error: The device is not ready (21)
…
Several lines about zip files that are encrypted (yes, I have them)
…
Volume{78287502-720b-11df-b39a-806e6f6e6963} Error: The device is not ready (21)

I have
OS: Windows 7 Ultimate 64-bit
Machine is up to date with it’s software, except no SP1 is installed.
(It consistently fails to be installed)

Antivirus: Avast Free Antivirus v2014.9.0.2021
(with “Browser Cleanup” feature uninstalled, as it was constantly prompting me for ‘bad’ add-ons’ and, if okaed,
removing my Chrome and Firefox browsers, VPN4All, Irfanview, and Ashampoo programs, plus potentially some more.)
Virus Definitions: 140728-2

Could the fix for “Some files could not be scanned” (topic=90883.0) be applied here?
Thank you.

2

Hi there, lets have a quick look. Files that cannot be scanned are just that, once they become activated in any way Avast will then scan them

Please download Farbar Recovery Scan Tool and save it to your Desktop.

Note: You need to run the version compatible with your system. If you are not sure which version applies to your system download both of them and try to run them. Only one of them will run on your system, that will be the right version.

[*]Right click to run as administrator (XP users click run after receipt of Windows Security Warning - Open File). When the tool opens click Yes to disclaimer.
[*]Select additions at the bottom
[*]Press Scan button.

https://dl.dropboxusercontent.com/u/73555776/frst.JPG

[*]It will produce a log called FRST.txt in the same directory the tool is run from.
[*]Please attach both logs generated.