Update: Unchecking all options, including "Index file size" is still causing Everything to display some file sizes in the petabytes range. Some files are displayed with corruption in their file names (in the file list). In these cases, there is no information displayed for any of the columns (just blank where there should be size, dates, path, etc). However, if I downgrade to Everything 1.3.4.686fix3 (x64), all of these problems disappear.
All of the corrupted entries are on my USB 3.0 Western Digital 3 TB external hard drive, so that's interesting. I ran Scandisk on that drive, it came up clean. Hard Disk Sentinel's diagnostics also shows no problems. HD Tune Pro v5.50 also comes up clean.
I don't understand why the problem goes away if I use the previous version of Everything (version 1.40.688). Maybe the drive being 3TB is causing a problem? It would be interesting to see if anyone else is having problems with very large drives...
I've checked its health using the Windows disk checker, Hard Disk Sentinel, and HD Tune Pro. All returned good results. The dates are not corrupted. Here is a screenshot of what it looks like: http://i.imgur.com/G3T4PXs.jpg
I seem to have exactly the same problem with file sizes and filenames being corrupted with the latest beta (the latest stable works fine).
The problems seem to happen regardless of using "admin mode" or "everything service".
The filename corruption doesn't seem to coincide with any specific characters - you can identify corrupted filenames in the search result by 0 byte filesize (using filesize indexing) or empty filesize (without indexing).
C:\Windows\system32>fsutil fsinfo volumeinfo v:
Volume Name : USB T3.0 N Toshiba
Volume Serial Number : 0xd8961ce3
Max Component Length : 255
File System Name : NTFS
Supports Case-sensitive filenames
Preserves Case of filenames
Supports Unicode in filenames
Preserves & Enforces ACL's
Supports file-based Compression
Supports Disk Quotas
Supports Sparse files
Supports Reparse Points
Supports Object Identifiers
Supports Encrypted File System
Supports Named Streams
Supports Transactions
Supports Hard Links
Supports Extended Attributes
Supports Open By FileID
Supports USN Journal
C:\Windows\system32>fsutil fsinfo ntfsinfo v:
NTFS Volume Serial Number : 0x32d8965bd8961ce3
Version : 3.1
Number Sectors : 0x0000000023a991ff
Total Clusters : 0x0000000023a991ff
Free Clusters : 0x000000000046327a
Total Reserved : 0x0000000000088780
Bytes Per Sector : 4096
Bytes Per Physical Sector : 4096
Bytes Per Cluster : 4096
Bytes Per FileRecord Segment : 4096
Clusters Per FileRecord Segment : 1
Mft Valid Data Length : 0x00000003be300000
Mft Start Lcn : 0x00000000000c0000
Mft2 Start Lcn : 0x0000000000000002
Mft Zone Start : 0x000000001e948660
Mft Zone End : 0x000000001e954e80
RM Identifier: C80F8B54-785D-11E3-8723-028037EC0200