Windows 10: Pwd no longer works in 8.1 after update

Hi guys. So, I have a Sony Vaio running 8.1. The other day Windows ran an update and rebooted. After the reboot I tried logging in with my normal 4 digit pin and I receive an error that it is invalid. My laptop being the age that it is I haven't used the real password in over four years, thus I do not remember it and the clue is no help. I am not able to get into the boot menu, however, if I shut it down improperly about 4 times it will try to repair itself then gives me my menu options such as: command prompt, system restore, startup repair etc. I am not able to log on as an administrat

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Store Live Tile no longer works

Sorry I didn't finish editing that post.

it's up there now post #6.

 

MS Pwd not being retained

According to the suggestions on your community help page that to correct the MS Acct I have to perform a number of major steps to get this pwd to stay recognized. I think not, MS needs to get its program operational so that the end user doesn't have to
spend valuable time trying to correct a problem created by their inability to produce a quality product. About a month ago I purchased a number of items because I was told that MS was no longer going to support the items I did have. That is a chunk of change!
Because it is a chunk of change I expect their product to work without an hitches. Now if there is a hitch I expect THEM to fix it. NOT ME! I am not spending the rest of my day trying to repair a problem caused by their inability to write a decent program.

 

Unlocked Realtek HD Audio Drivers Windows 7 & 8 (With Dolby Digital Live and DTS Interactive)

DTS supported natively by Windows 8/8.1 and it should work on windows 10 too just DDL require to unlock your driver .