PackageVolume.Repair Method
Definition
Important
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Attempts to detect and correct invalidated package volume tracking information (and other similar conditions). Repair requires admin privilege.
public:
virtual void Repair() = Repair;
void Repair();
public void Repair();
function repair()
Public Sub Repair ()
Examples
A Fabrikam app checks whether a PackageVolume is OK and, if not, prompts the user to confirm that the app should proceed to repair the PackageVolume.
void CheckAndFixPackageVolume(string packageStorePath)
{
var packageVolume = PackageVolume.FindPackageVolumeByPath(packageStorePath);
if (packageVolume.IsRepairNeeded())
{
bool ok = PromptUserForConfirmation();
if (!ok)
{
return;
}
}
packageVolume.Repair();
}
Remarks
A storage volume's mount point (a drive letter or a folder) can change over time. So, to mitigate that, Windows pairs a PackageVolume with the underlying storage volume's media ID. That way the PackageVolume can always be identified.
Say, for example, that you insert a USB flash key, and its mount point is E:
. Then you remove the USB flash key, and later reinsert it, and this time it's mounted as K:
. The PackageVolume is now recognized at K:
because it (volume K:
) has the media ID that's associated with the PackageVolume.
But it's possible for this tracking information to be invalidated. For example, you back up a drive's content, replace the drive with a new one, and then restore the content. The packages installed on that drive's PackageVolume(s) aren't recognized by Windows because the new drive has a different media ID. Repair attempts to detect and correct that and other similar conditions.
You can call PackageVolume.IsRepairNeeded to determine whether the PackageVolume is in need of repair.