Windows 10中SATA RAID 1光盘上奇怪的缺少空间

一个大约10个月前创建的Windows 10专业版安装（全新安装）（mb ASUS Z87-DELUXE）。

一开始我没有注意到它，但是其中一张光盘的空间开始消失了。我的第一个猜测是，其中一个SATA RAID 1光盘已损坏。但是根据Intel Rapid程序，这些光盘可以治愈。如果我运行windirstat，则说使用了49,5Gb的光盘。如果我在“我的电脑”上查看，整个光盘已满。如果我在资源管理器中选择了所有文件夹（也都隐藏了）并选择属性，则表示整个光盘使用了53.5Gb。

如果在Windows设置中使用StorageSense表示我用于应用程序（！？）（光盘为781Gb大）为736Gb，如果单击该应用程序，则仅显示使用136Mb的程序安装。我也已经在开发中安装了MS SQL，但是整个文件夹只有8Gb。

因此，我的猜测是Windows占用了空间，但又是为了什么呢？任何建议都将适用。当然，我总是可以将全部内容复制到另一张光盘上，然后格式化该光盘并将其移回并用SQL重新装载数据库。但是不知道很烦人...

（是的，我已经安装了完整的防病毒软件，ESET Internet security）

（已针对该光盘关闭系统还原。对于c驱动器，仅恢复10Gb）

储藏感的结果

*L:\>chkdsk  
The type of the file system is NTFS.  
Volume label is Liten lagring.  
WARNING!  /F parameter not specified.  
Running CHKDSK in read-only mode.  

Stage 1: Examining basic file system structure ...  
  395264 file records processed.  
File verification completed.  
 Phase duration (File record verification): 4.51 seconds.
  1054 large file records processed.
 Phase duration (Orphan file record recovery): 0.00 milliseconds.  
  0 bad file records processed.  
 Phase duration (Bad file record checking): 0.54 milliseconds.  

Stage 2: Examining file name linkage ...  
  67141 reparse records processed.  
  452478 index entries processed.  
Index verification completed.  
 Phase duration (Index verification): 25.67 seconds.  
  0 unindexed files scanned.  
 Phase duration (Orphan reconnection): 203.33 milliseconds.  
  0 unindexed files recovered to lost and found.  
 Phase duration (Orphan recovery to lost and found): 0.60 milliseconds.  
  67141 reparse records processed.  
 Phase duration (Reparse point and Object ID verification): 152.03 milliseconds.  

Stage 3: Examining security descriptors ...  
Security descriptor verification completed.  
 Phase duration (Security descriptor verification): 21.87 milliseconds.  
  28608 data files processed.  
 Phase duration (Data attribute verification): 0.42 milliseconds.  
CHKDSK is verifying Usn Journal...  
  39364112 USN bytes processed.  
Usn Journal verification completed.  
 Phase duration (USN journal verification): 1.13 seconds.  
The Volume Bitmap is incorrect.  
Windows has checked the file system and found problems.  
Please run chkdsk /scan to find the problems and queue them for repair.  
 819199999 KB total disk space.  
 818417336 KB in 266141 files.  
     93696 KB in 28609 indexes.  
         0 KB in bad sectors.  
    524975 KB in use by the system.  
     65536 KB occupied by the log file.  
    163992 KB available on disk.  
      4096 bytes in each allocation unit.  
 204799999 total allocation units on disk.  
     40998 allocation units available on disk.  
Total duration: 31.70 seconds (31704 ms).

L:\>chkdsk /scan  
The type of the file system is NTFS.  
Volume label is Liten lagring.  
Stage 1: Examining basic file system structure ...  
  395264 file records processed.  
File verification completed.  
 Phase duration (File record verification): 4.49 seconds.  
  1054 large file records processed.  
 Phase duration (Orphan file record recovery): 0.00 milliseconds.  
  0 bad file records processed.  
 Phase duration (Bad file record checking): 0.60 milliseconds.
  
Stage 2: Examining file name linkage ...  
  67141 reparse records processed.  
  452478 index entries processed.  
Index verification completed.  
 Phase duration (Index verification): 25.77 seconds.  
  0 unindexed files scanned.  
 Phase duration (Orphan reconnection): 179.18 milliseconds.  
  0 unindexed files recovered to lost and found.  
 Phase duration (Orphan recovery to lost and found): 3.11 milliseconds.  
  67141 reparse records processed.  
 Phase duration (Reparse point and Object ID verification): 163.17 milliseconds.  

Stage 3: Examining security descriptors ...  
Security descriptor verification completed.  
 Phase duration (Security descriptor verification): 12.04 milliseconds.  
  28608 data files processed.  
 Phase duration (Data attribute verification): 1.57 milliseconds.  
CHKDSK is verifying Usn Journal...  
  39365376 USN bytes processed.  
Usn Journal verification completed.  
 Phase duration (USN journal verification): 1.05 seconds.  

Windows has scanned the file system and found no problems.  
No further action is required.  
 819199999 KB total disk space.  
 818417336 KB in 266141 files.  
     93696 KB in 28609 indexes.  
         0 KB in bad sectors.  
    524975 KB in use by the system.  
     65536 KB occupied by the log file.  
    163992 KB available on disk.  
      4096 bytes in each allocation unit.  
 204799999 total allocation units on disk.  
     40998 allocation units available on disk.  
Total duration: 31.69 seconds (31691 ms).  
L:\>*