Windows 8.1 C drive ran out of C drive space

Have you tried running a disk cleanup?

I would also remove any applications you don't use, you can use Treesize to see where the majority of the space is being used then look into that area.

As mentioned before, I already removed 10 gig with copying and deleting the OST.  How do I get it to boot when I already freed up disk space?  It says "startup repair couldn't repair your PC"  log file c:\windows\system32\logfiles\srt\srtTrail.txt

Check the log file you just mentioned, and also check event viewer if you are able to boot to safe mode. Start -> Run -> eventvwr
, then hit enter.

Searching for clues in logs is cumbersome, but patience often pays.

i ran notepad on the log file and narrowed down the error message to "System files integrity check and repair failed-error code 0x490"

sfc /scannow suggested from the link did not report issues nor did it fix anything.
Tried chkdsk /f/r C: ...  Windows has scanned the file system and found no problems
Tried restoring registry hives from regbackup

Does anyone know how to run bootrec.exe?   The link suggested I run it but bootrec quickly stops running stating "total identified windows installations: 0"

Any boot utilities to confirm the integrity of the SSD?

It gives some unhelpful error message that I can't remember.   This results in booting windows 8.1 repair mode that does absolutely nothing to fix the problem other than providing a DOS window for me to free up some data.  I made a USB diagnostics stick from the Lenovo site but it gives a black screen with a couple hieroglyphics after booting all the way to the point where you the link GUI is about to load.   Meanwhile, my other Lenovo loads the stick just fine.  I think I may wipe and load windows 7.  The SSD drive is a sumsung.  See attached file.    Maybe I can attach the drive as an external USB and run some diagnostics from the Samsung site?   Also, I wanted to try pull one of two video cards to see if that helps with boot bit they seemed to be bonded.  See attached file
samsung.jpg
video.jpg

Update:  I pulled the SSD and the Lenovo diagnostics works.

Lenovo has no diag for an SSD - best use the software from samsung
and check the firmware with it too

Why are my options limited for diagnosing and updating the SSD?  See attached file...
Capture.JPG

I would call Samsung to help troubleshoot.
You've done all the easy stuff.

yep, it looks like it

if possible, test it on another pc, and run the diag there too

I wouldn't trust that SSD after this.  Depending on when you bought it, should be under warranty, I would call them up and have them send a new one.

Interesting.  So the "unknown" is a red flag.  I will replace it.  Thanks guys!

Thanks!  I have solid understanding of what to use to troubleshoot next time I have issues with these hooptie Lenovos.