If you want to remove Startup Password from your computer when you remember it, you can make your goal come true by means of either of the following two methods.
Way 1: Reset the Startup Password as an empty password.
Step 1: Open the Search bar by Windows Logo Key+F, type syskey in the blank box, choose Apps and click syskey in the results.
Tip: You can also open syskey through the Run app.
Step 2: Select Yes in the User Account Control dialog box to move on.
Step 3: In the next window, click the Update button.
Step 4: As the Startup Key window shows up, directly click OK, leaving the password entry boxes blank.
Step 5: When the Windows Startup Password dialog box appears, enter the current password and tap OK.
Tip: By use of this method, the Startup Password window (see the following picture) will show up during the computer startup process, but you can bypass it without entering any password.
Way 2: Remove the Startup Password by changing it into a System Generated Password.
Step 1: Open the Startup Key window according to the first three procedures of Way 1.
Step 2: Choose System Generated Password, make sure Store Startup Key Locally is selected and click OK.
Step 3: In the Windows Startup Password window, input the current password and choose OK.
Tip: With this method, no Startup Password window will show up during the startup.
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