To format a computer means that all your data will be lost. Your operating system, programs, emails, drivers, pictures, everything! All of the updates on your programs will be gone, infarct the every entire program will be gone.
This drop in TSH is an attempt to return circulating thyroid hormone levels to normal. So, a test to measure the amount of TSH in your system will usually show lower than normal TSH when the thyroid is overactive. So, in general, LOWER TSH = OVERACTIVE THYROID / HYPERTHYROIDISM.
1 A low TSH level with a high FT4 level and a high FT3 level: hyperthyroidism (over-active thyroid) 2  Abnormal TSH levels together with normal FT4 levels indicate you may be at risk of developing a thyroid disorder.  A low TSH level together with a low FT4 level can indicate a disorder of the pituitary gland.