Computer Shut Down and ran CHKDSK

I'm in bad need of a new computer, but haven't gotten one yet. Tonight my computer shut down by itself (has done a handful of times lately) and then upon restart, it ran CHKDSK automatically (I bypassed the Safe Mode option).

When verifying files, it showed:

Attribute record of type 0x80 and instance tag 0x3 is cross linked starting at 0xd0bc3 for possibly 0x1 clusters.
Some clusters occupied by attribute of type 0x80 and instance tag 0x3in file 0x6e631 is already in use.
Deleting corrupt attribute record (128, "")from file record segment 452145.
630784 file records processed.
File verification completed.
5349 large file records processed.
0 bad file records processed.
2 EA records processed.
54 reparse records processed.

When verifying indexes, it showed:

The file reference 0x1a9400000000e4ea of index entry SEP49A.tmp of index $I30with parent 0xe48 is not the same as 0x1a9800000000e4ea.
Deleting index entry SEP49A.tmp in index $I30 of file 3656.
The index bitmap $I30 in file 0x8d182 is incorrect.
Correcting error in index $I30 for file 577922.
Index entry f_0009d7 of index $I30 in file 0x8d182 points to unused file 0x97017.
Deleting index entry f_0009d7 in index $I30 of file 577922.

And then continued with probably several hundred lines of "Deleting index entry..."

It then restarted okay that I can tell, but I'm concerned there are a few less GB of used space in my C: drive properties. What's the best way to know if any files were corrupted/lost during the CHKDSK process, and how to get them back?

Thank you so much!!