MS Office won't open - files corrupt

I don't know if this is the proper place for this problem or not. If I have placed this in the wrong location, please tell me where to post it.
My problem started one day when I attempted to open Outlook and my brokerage program simultaneously and Windows locked up. I forced a shutdown and restarted Windows but HD Sentinel said that my SSD Health was suddenly down from 77 t0 62.

I soon had BSOD problems also (0x0000007A).
I chose to run HD Sentinel's "Disk Repair (Read Test with Sector Repair) - Most cases Non-Destructive (see notes and Help)." After running this "Repair" the Health improved to 79 but I was unable to open MS Outlook. I received a warning that the Outlook.pst file had become corrupted and that a new file would be created, as i recall. This message was presented with a red progress bar that was rapidly moving across the screen, so I clicked on "OK" and the message went away, as I remember.
Next, I tried to restart Outlook, and I got the following message:

So, I opened the folder containing all of the Outlook files:
C:\Users\XXX\AppData\Local\Microsoft\Outlook\
and I found that the Outlook.pst file had been renamed Outlook.pst.Corrupt
Next, I tried one of the following, I'm not sure which:
1) I took a backup Outlook.pst file from January and replaced the Outlook.pst.corrupt file with the known good January file. This did not work. Outlook simply renamed the January file to Outlook.pst.corrupt and II was back to square one.
2) Next (I think) I tried running ScanPST.exe on the Outlook.pst.corrupt three times. The name of the file was unchanged and Outlook would not start.
After either step 1) or 2) above, I received the following error message:

Oh, one more factoid and this is probably the root cause of my problem. I have not been paying close attention to the free space on my C: drive which fell as low as 1.7 GB, I think. I remedied this by moving one of the Outlook archive or backup files from the C: drive to my removable, backup I: drive.
Here is an image of my current Outlook folder contents:

I am open to any suggestions on how to proceed.
Thanks!

To help those following me to help you, are the other Windows and 3rd party programs and utilities working aok? Does your brokerage program directly use Outlook for making calls, making trades, etc.?

One thing I have done recently to help speed up Windows 7 Pro 64bit boot and load was reset its Firewall back to its default. I do not know if that would work for your Windows 7's Pro 64bit boot and load. The original problem you posted - I have no ideas for you. We await those who can help.

Along with your normal account, did you earlier activate/enable the built-in admin account? Or, is your normal account an admin level account when things were going just fine?

"I am wondering if the reason that I was unable to replace the Outlook.pst.corrupt file with a January version of Outlook.pst is because the Bitdefender AV program would not allow it? Does that sound reasonable?"
I do not know the answer, will listen in and learn from the others in here.