Windows 10: I just got this PC, a desktop 4T909RF It needs a password to open it????

This is a New PC to me. When setting up I did not set up a admin password, Big MistakeI was using PC for research etc.Then I decided to add my Microsoft acct ,which seemed like a good option! I now have to log in & my Microsoft password is not opening it.User password is wrongI have changed my password 2 times on my Microsoft account, it does not help.My Microsoft account does show thispc device is associated with my account.I am not techy , I should take the pc to a repair shop? who knows what they are doing. I have no files or data on this pc to loose.Any help would be appreciated

:)

 

I just got this PC, a desktop 4T909RF It needs a password to open it????

This is a New PC to me. When setting up I did not set up a admin password, ( Big Mistake)

I was using PC for research etc.

Then I decided to add my Microsoft acct ,which seemed like a good option! I now have to log in & my Microsoft password is not opening it

.

User password is wrong

I have changed my password 2 times on my Microsoft account, it does not help.

My Microsoft account does show thispc device is associated with my account.

I am not techy , I should take the pc to a repair shop? who knows what they are doing.

I have no files or data on this pc to loose.

Any help would be appreciated

 

windows 10 deleted my desktop files

Step 1 - I upgraded to Win 10 and lost all my files on Desktop.

Step 2 - Found the files in Network - USers- Desktop

copied all files again to desktop.

Step 3- Restarted my machine again and lost desktop files again.

Step 4 - As suggested did the following as listed below but dont find my files.

• Press “Windows + E”, open This PC/Computer
• Open Local Disc C, open Windows.old
• Click on Users, select your User name
• Go to desktop folder

Cant find my files. Why is Win 10 deleted files again and again from Desktop ?.

 

Desktop items open Libreoffice; windows bugged and flickering

My mother's PC had the most bizarre bug I've ever seen this morning.

PC specs: Windows 10 Home 64bit
Version: 1903 when problem occurred (1909 now)

What happened:

• all desktop items, including folders, opened in Libreoffice Writer; once open it displayed a blank document then began flickering as if it had bugged while scrolling
• opened Task Manager from the task bar, selecting the second tab opened the final tab, which began flickering like Libreoffice
• problems stopped after a restart, then occurred again after another restart; then stopped after the PC ran for a short time
• no error popups or BSODs
• she said Candycrush reported an error earlier but it didn't occur when I looked at it; she said it mentioned "something about the desktop"

Steps I've taken:

• did a quick virus scan then reboot scan with Windows Defender; no problems found
• sfc /scannow; no problems found
• installed update KB4537572 and upgraded system to 1909; updates appear to have been successful, no other updates available

At the moment the problem has disappeared, but since it reoccurred previously I'm not sure it hasn't been fixed.

I'm out of ideas. What else can I check and what other tests can I run? Based on the given information could anyone suggest what the problem might be?