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I'm a gamer and i was wondering where does my Steam password get saved to . Cause i have it set to log me in automatically on steam? can someone also tell me the command in the command line to get a single REG_SZ file from the reg for example might be HKEY_LOCAL_MACHINESOFTWARETest then the REG_SZ keys name is test thanks in advance

I was wondering if its possible to remove Windows Hot-fixes, Patches and so on from the command line? if so can you please tell me the command Thank you in advance.