Symptom
Intel® X-25M 160GB Solid-State Drive shows disk is full even if OS and few programs are installed on the drive. Remaining capacity on the disk is still around 60 MB.

1. Show all hidden/system files in OS.
2. Check for any huge file size greater than 3 GB and with filenames like "--=={Intel_Trim_File_xx}==--.bin".
3. Delete these files.

This files are generated after running Optimization Tool on the SSD Toolbox but failed, as a workaround, deleting them will free up the remaining capacity on disk.

Disclaimer

Operating System:

Windows 7 *, Windows 7 (32-bit)*, Windows 7 (64-bit)*, Windows 7 Enterprise, 32-bit version*, Windows 7 Enterprise, 64-bit version*, Windows 7 Home Basic, 32-bit version*, Windows 7 Home Basic, 64-bit version*, Windows 7 Home Premium, 32-bit version*, Windows 7 Home Premium, 64-bit version*, Windows 7 Professional, 32-bit version*, Windows 7 Professional, 64-bit version*, Windows 7 Starter Edition*, Windows 7 Ultimate, 32-bit version*, Windows 7 Ultimate, 64-bit version*, Windows 7(RC1, 32-bit)*, Windows 7(RC1, 64-bit)*

This applies to:

Intel® SSD X25-M Series (160GB, 2.5in SATA 3Gb/s, 34nm, MLC)