Dell Studio 1749 (Early 2010) - Manual (Page 78)

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Drives and Media
3 Click Run as administrator.
4 If a window appears asking permission to continue, click Continue.
5 Type the following:
vssadmin list shadowstorage .
6 Press <Enter>.
The Command Prompt displays the amount of space used by Shadow
Storage.
Reducing Hard Drive Space Used by Shadow Storage
1 Click Start → All Programs→ Accessories.
2 Right-click Command Prompt.
3 Click Run as administrator.
4 If a window appears asking permission to continue, click Continue.
5 Type the following:
vssadmin resize shadowstorage /On=C: /Maxsize=[the maximum space
you will allow for Shadow Storage]
6 Press <Enter>.
7 Click Start
→ Computer→ Local Disk (C:) to confirm that less
drive space has been allocated to Shadow Storage.
NOTE:
See Windows Help and Support for information on optimum and
minimum sizes for this storage area.
Solid-State Drive (SSD)
A solid-state drive (SSD) is a data storage device that uses solid-state memory
to store persistent data. Solid-state is an electrical term that refers to
electronic circuitry that is built entirely out of semiconductors whereas Hard
Drives use a magnetic media.
Unlike flash-based memory cards, an SSD emulates a hard disk drive, thus
easily replacing it in most applications. An SSD using SRAM (Static Random
Access Memory) or DRAM (Dynamic Random Access Memory), instead of a
flash memory, is often called a RAM-drive.