cc @dkager

Steps to reproduce:

1. Open windows disk cleanup by typing cleanmgr in the run window.
2. Select a drive if applicable
3. Use arrow keys and object navigation in the resulting list.

Actual behavior:

For a focused (selected) item, NVDA says: Downloaded Program Files check box selected checked 0 bytes 1 of 10
For an unselected item, NVDA says: Downloaded Program Files check box checked 0 bytes 1 of 10

Expected behavior:

For a focused (selected) item, NVDA says: Downloaded Program Files check box checked 0 bytes 1 of 10
For an unselected item, NVDA says: Downloaded Program Files check box not selected checked 0 bytes 1 of 10