Do not delete files, Vista system security Slimming new law

The friend's system for Vista SP1 64-bit system Ultimate version, only a few commonly used software, can be a single Windows folder has G, too big. Just want to not delete the file also to the Vista system slimming method, the way is to compress C:\Windows\System32\DriverStore\FileRepository and C:\Windows\winsxs these two folders. After that, C: disk immediately more than 4 G. And after the test system performance is completely unaffected, and Vista system startup, shutdown speed will not be slow.

Of course, if you want to compress the two folders directly, you will be prompted to do not have permission, so we need to get this permission:

First, click on the C:\Windows\System32\DriverStore\FileRepository-attribute, we first get ownership of this folder, point security-advanced-owner, then point edit-advanced other users or groups, Enter your username in the name of the selected object. Or point advanced-immediately find, select your username, OK, and then tick the replacement sub container and object owner, do not select this, we will only have this folder ownership, and no ownership of his subfolders and inside the file, then apply-OK, This allows us to have ownership of this folder, since the ownership of this folder is system and does not belong to us.

Second, then point permissions-edit-Add, fill in your username, or use the advanced-immediately find, OK, click your username-edit, take full Control/allow that tick, and then replace the existing inheritable permissions on all descendants with the permissions that you can inherit from this object. This doesn't tick, you just have to go outside. folder permissions, inside the folder is still not "full Control", and then point application-ok-ok-ok.

Finally, the Point folder-Properties-Advanced-compression-OK on the line, compression has been used in the file can not be compressed, choose to ignore the line. C:\Windows\winsxs folder operation, two files compressed about 10 minutes. Now look at the C: disk of your Vista system! How many G?