Tips to Slim Down Vista

Windows Vista, whether the source setup files and after installation system files,
took up a lot of hard disk drive space. Just try to imagine from the fact that Windows
XP fits into a CD (maximum 700 MB), while Windows Vista requires a DVD (max 4.7 GB).
Windows Vista is fat and obese, but that doesn’t mean that it’s impossible to ’slim’
down the Vista to make it uses less disk space and reclaim some storage for larger and
larger media and date files. The tips below suggests several not system critical files
that can be safely deleted and removed from the system without causing instability.

%SystemDrive%\Windows\System32\DriverStore\FileRepository

The directory stores backup copy of the built-in drivers in Windows Vista. You probably won’t
need most of the drivers, unless you plan to install new hardware. Even if there is new hardware,
it should comes with a Vista-compliant driver. So the folder can be removed. Depending on which
edition of your Vista, deleting “FileRepository” folder can reclaim at least 1 GB of disk space,

To delete “FileRepository” directory, users must first take ownership and grant full control
permissions to users’ account for the directories and all sub-folders recursively.
Use TakeControlOf command script or add a Take Ownership in right click menu to easily do the task.

%SystemDrive%\Boot

“Boot” folder stores Windows Vista boot screen for different language editions. If you’re using
only a single language of Vista, such as “en-US” (for American English) or “de-DE” (for German)
or another other localized langauge, the others not in use can be removed to save about 13.3 MB disk space.

To remove “Boot” folder, users also required to claim ownership and assume full control access on
the directory and all its subdirectories as per instruction above.

%SystemDrive%\perflogs\System\Diagnostics

“perflogs” folder is created by Performance Information and Tools, and Reliability and Performance
Monitor that tests and measures Vista system score rating and performance to save the recorded files.
The data is saved in “perflogs\System\Diagnostics” according to folders named by date. If you no longer
need the performance data, delete the folder. Vista will slim down by about 10 MB.

%SystemDrive%\Windows\Downloaded Installations

Some programs such as Adobe (Macromedia) Dreamweaver will extract and unpack the setup files into this
folder during installation. After installed, the files are unused and can be erased.

%SystemDrive%\ProgramData

Some installers such as iTunes will unpack and extract setup files to this directory, which can safely
removed. In the example, iTunes will C:\ProgramData\Apple Computer\Installer Cache\iTunes which stores
installation files. However, note that most files and folders here are needed for proper execution of
applications. So delete with care.

%SystemDrive%\Windows\Help

Not really recommended, but if you feel that you already master Vista, and really running out of disk
space acutely, removing the Help files will free up around 105 MB space.

%SystemDrive%\Windows\IME

Input Method Editor (IME) provides a way for users to type and enter text in Windows system. If you have
installed a few IMEs, but no longer use them, delete the correct corresponding folders to free disk space.
Warning though, it’s hard to determine which folder should match with which IME, and any wrong deletion will
render system unstable. Each IME may takes up tens of megabytes.

%SystemDrive%\Windows\Installer

The uninstallation programs for installed programs are stored here. If you confirm and sure that yuo won’t
uninstall a program after installation, it’s possible to remove the uninstaller for the program. Depending
on the number of apps installed, the storage space recovered can add up hundreds of MB.

%SystemDrive%\Windows\Web\Wallpaper

The free wallpaper graphics and images that come packaged with Vista. Remove and delete or move the unused
or not needed wallpapers to another drive. Mind you, the wallpapers are high resolution and big in size.
Deleting all of them will free up 45 MB.

%SystemDrive%\Windows\SoftwareDistribution\Download

The contents inside “SoftwareDistribution” folder are record date about the system updates installed,
and cannot be removed or deleted. However, it’s possible to delete files inside “Download” folder which
are the source setup files downloaded.

%SystemDrive%\Users\Public

The public document folders for all users. Vista populates the public folders with several media files such
as pictures and videos of about 220 MB in size, which can be deleted if not used. For example,
“C:\Users\Public\Recorded TV\Sample Media” folder is the sample recorded video clips of Windows Media
Center and eats up 143 MB disk space, while “C:\Users\Public\Music\Sample Music” contains 59 MB of
free .wma music, “C:\Users\Public\Pictures\Sample Pictures” has about 5 MB of sample photos, and
“C:\Users\Public\Videos” has about 10 MB of sample videos.

Last but not least, always use the Vista Cleaner script to remove unwanted and unneeded files in the PC,
and it’s also possible to delete the hiberfil.sys of GBs in size from the system.