public void RemovePackage(int pkgId)
{
InstalledPackages.RemoveAll(x => x.PackageId == pkgId);
List <string> removedFiles = Utils.RemoveFiles(SqLiteAdapter.LoadPackageFiles(pkgId));
SqLiteAdapter.RemovePackageFiles(removedFiles);
SqLiteAdapter.RemoveInstalledPackage(pkgId);
SqLiteAdapter.FlushToFile(true);
}