Due to the extensive corruption present on your system, I do not believe that it is possible to reliably fix it. I would therefore recommend that you try to upgrade to Windows 10 or do a Repair Install, but before you do that, ensure that your HDD is still okay.
GSmartControl
Follow the instructions below to check your SMART status with GSmartControl:
Download the portable version of GSmartControl and save it on your Desktop;
Extract the zip file to your Desktop. Open the folder gsmartcontrol-1.1.3-win64 which should be located on your Desktop and double-click gsmartcontrol.exe to launch the program.
Identify your drive in the list (if recognized by the tool), and hover your mouse over it.
You should see something called: SMART status. It will either read: Enabled, in which case you should do the following:
Double-click on it to bring up its window (usually you'll find your drive by its size or its brand name);
Go to the Self-Tests tab, then select Extended Self-test in the Test type drop-down list and click on Execute (this test can take a few hours to complete);
Once the test is over, the results will be displayed at the bottom of the window. Please copy and paste these results in your next reply or take a screenshot;
Also, go in the Attributes tab and if you have any entries highlighted in red or pink, take a screenshot of the GSmartControl window and attach it in your next reply;
Please note: If the SMART Status reads: Unsupported, stop and let me know.