Corrupted Dual Boot

Hi everybody

I have posted this in both the Mint and Linuxquestions forums with no solution

Perhaps there may be somebody here who has the answers

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Is there anybody here expert in booting and in particular dual booting?

My aim is to dump MS

I started out having a dual-boot Windows 7 / Linux Mint system with a view to ditching MS in favour of Linux

Something went wrong, I think MS tried forcing an update on me.

on trying to boot I got the message "Operating System Not Found"

I used the Rescue Disk which eventually told me that it had fixed the boot partition

report at http://paste.ubuntu.com/15502896/

On trying to boot I got:-

Linux Mint 17.3 Ciamon 64 bit
Advanced Options for Linux Mint 17.3 Ciamon 64 bit
Memory Test (memtest86+)
Memory Test (memtest86+, serial console 115200)
Windows 7 (loader) (on /dev/sda1)
Windows 7 (loader) (on /dev/sda2)

I have tried all combinations with no joy

I loaded a Mint system from CD (same one as loaded original system) and put the disk into an attached caddy
I can load and navigate the 455 GB volume which has the entire file system and data of my Windows 7 system
I can load and navigate the 41GB volume which has the entire file system and data from my Mint system

results from 'disks' command from accessories:-

500 GB Hard Drive
/dev/sda
Partitioning Master Boot Record

Volumes
Partition 1 105 Meg - /dev/sda1 - HPFS/NTFS(Bootable) contents NTFS-Mounted

Partition 2 Filesystem 455GB - /dev/sda2 - HPFS/NTFS contents NTFS- Not Mounted

Partition 3 Extended Partition 45 GB - /dev/sda3 - Extended Extended Partition
Partition 5 Filesystem 41GB - /dev/sda5 - Linux Ext4 (version 1.0) - Mounted
Partition 6 swap 4.2 GB - /dev/sda6 - linux Swap Swap (version 2) - Active
1.1 Meg - /dev/sda - Unallocated Swap

results from disk check

fsck /dev/sda1
fsck: fsck.ntfs: not found
fsck: error 2 while executing fsck.ntfs for /dev/sda1

fsck /dev/sda2
fsck: fsck.ntfs: not found
fsck: error 2 while executing fsck.ntfs for /dev/sda2

fsck /dev/sda3
fsck.ext2: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda3
Could this be a zero-length partition?

fsck /dev/sda5
/dev/sda5: clean, 217501/2506752 files, 3946730/10016256 blocks

fsck /dev/sda6
fsck from util-linux 2.20.1
fsck: fsck.swap: not found
fsck: error 2 while executing fsck.swap for /dev/sda6

contents of /etc/fstab
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda5 during installation
UUID=f5f2eab8-e23a-4e99-807c-ab570a342d79 / ext4 errors=remount-ro 0 1
# swap was on /dev/sda6 during installation
UUID=702fadb0-363c-4819-8e79-ceca327a022b none swap sw 0 0

grub.cfg file attached as grubcfg.txt

If I put the disk in a caddy and coect it to a windows 8.1 machine I get a System Reserved disk with 69.5 MB free out of 99.9 and a
'disk' (un-openable and size unknown)and MS Disk Manager hangs when the caddy is attached.

Is there somebody who knows the intricacies of linux and windows booting who could help me restore my boot

This is really frustrating as I can see every scrap of files and data on both the Mint and Windows installations but just can not
load either system. I have lost no data

My plan is to restore my windows system on this disk and then load Linux onto its own PC, so it doesn't matter if the Mint gets wiped
out, as long as I can boot into windows for now so that I can gradually migrate to Linux and then dump windows for good.

Thanks very much in advance for any help that this forum can give me