windows 7 "system recovery options" cant find OS

I'd suggest booting a Win 7 install DVD or flash drive then select Repair and Command Prompt and run chkdsk c: /r against your boot drive (may not be C: ).

See here: Download Windows 7 ISOs, Legally and for Free

Also available here: Microsoft DigitalRiver Mirror (Technet)

The 1st is a German torrent download site with verifiable MD5 checksums for each of the available ISOs.
To download Windows 7 using a torrent file, we will need a torrent client.

Any torrent client will work, though, but I recommend qBittorrent. All the others I've looked at try to install other garbage along with the torrent program so avoid them.

Windows 7 Starter x86 (32bit) SP1
MD5 Checksum: c23c9cecee7e3093acfe00faab7091b5
SHA-1 Hash: e1653b111c4c6fd75b1be8f9b4c9bcbb0b39b209
-
Windows 7 Home Premium x86 (32bit) SP1
MD5 Checksum: 0afa9359c62dc7b320205d3863c60385
SHA-1 Hash: 6071b4553fcf0ea53d589a846b5ae76743dd68fc
-
Windows 7 Home Premium x64 (64bit) SP1
MD5 Checksum: da319b5826162829c436306bebea7f0f
SHA-1 Hash: 6c9058389c1e2e5122b7c933275f963edf1c07b9
-
Windows 7 Professional x64 (64bit) SP1
MD5 Checksum: ed15956fe33c13642a6d2cb2c7aa9749
SHA-1 Hash: 0bcfc54019ea175b1ee51f6d2b207a3d14dd2b58
-
Windows 7 Professional x86 (32bit) SP1
MD5 Checksum: 0bff99c8310ba12a9136e3d23606f3d4
SHA-1 Hash: d89937df3a9bc2ec1a1486195fd308cd3dade928
-
Windows 7 Ultimate x64 (64bit) SP1
MD5 Checksum: c9f7ecb768acb82daacf5030e14b271e
SHA-1 Hash: 36ae90defbad9d9539e649b193ae573b77a71c83
-
Windows 7 Ultimate x86 (32bit) SP1
MD5 Checksum: 2572274e6b0acf4ed1b502b175f2c2db
SHA-1 Hash: 65fce0f445d9bf7e78e43f17e441e08c63722657

How to run chkdsk or System File Checker (SFC) from the Recovery Console

• Boot your Vista or Windows 7 installation DVD
• When you see "Press any key to boot from CD or DVD", press Enter.
• At the "Install Windows" screen, click on Repair your computer at lower left
• At the System Recovery Options screen, make note of the drive letter assigned to your boot drive (normally C: ) and click Next
• At the Chose a Recovery Tool window, click on Command Prompt. You will be sitting at X:\Sources directory.

Run chkdsk or SFC

• If you did not note the drive letter of your boot disk, you can enter bcdedit and look at the osdevice line to see what it is.
• For chkdsk, type chkdsk c: /r and press Enter (use the letter from above if not C: ).
• For sfc, type sfc /scannow /offbootdir=c:\ /offwindir=c:\windows and press Enter (use the letter from above)
• Let either run to completion undisturbed.

Vista or Windows 7: If you don't have a install DVD, you can download a legal copy here:

Windows 7 Direct Download Links
Windows Vista Direct Download Links

Make sure you get the same version you have installed: 32 or 64 bit; Home Premium, Pro or Ultimate.

"sfc /scannow /offbootdir=c:\ /offwindir=c:windows"

I'm guessing that was a typo, as that should be:

"sfc /scannow /offbootdir=c:\ /offwindir=c:\windows"

DId you run chkdsk c: /r?