Windows 10: Strange laptop behavior...

Lately my laptop has been acting very strange. Sometimes when I log in or restart my laptop when it opens the desktop background is the default, and I'm not logged into chrome. It is like I'm opening a new laptop. The files and music I download is gone and the games I have are still there just uninstalled, but the Microsoft store and Minecraft for some reason aren't re-installing when I click on them. Instead a white bar is underneath them and they don't open when I click on them. I can't un-install them either. When I re-sign into chrome everything comes back after a while, however I do have to re-sign in to certain websites and some passwords that I have saved aren't saved. Extensions and themes come back but it is still really annoying to have to sign in again. I also see a pop up notification that says ''something is wrong with your Microsoft account most likely your password changed'' or something along those lines. This is getting quite annoying and I can't really get a new laptop so I'd like to save this one. I can surely live with it but I'd prefer to not have to. I hate opening my laptop and have almost everything cleared. Please help! Thank you.

:)

 

Laptop Battery Strange Behavior

Recently, I noticed a strange behavior in my laptop's battery.

Whenever it is plugged it shows 100% charge but when I unplugged it, it went down to 0 and then computer shut down.

I kept it unplugged and then restart the laptop. It started up despite all warnings about the critical battery level and even worked for over an hour before I plugged it again! After plugged it again, it charged up to 34%. Again, when it is plugged, it shows
100 and when unplugged shows 34.

I am not sure if it is a hardware problem (battery, laptop, etc.) or a Windows issue. I did everything suggested such as troubleshooting, uninstalling and installing the battery driver, SFC scan, chkdsk, etc. None of them worked.

It is a Dell Inspiron laptop (over 3 years old) working with Windows 10.

Any idea would be appreciated.

 

Strange update behavior

My Dell W10 laptop hasn't been used for about a year, so I attempted to use Windows Update to bring it up to speed: 1) it was stuck on "updates are available/downloading 0%)" for several hours; 2) when it finally "finished", there were 5 updates listed;
3) when I selected download, they quickly disappeared one-by-one, and the computer went back to step 1 again. This has happened numerous times now.

When I look in the c:/windows/software distribution folder, I can see the 5 update folders there; so it appears that the updates are downloading but not installing. Strangely, my installed updates screen shows no update history/blank.

I even tried reinstalling W10 using a flash drive created on another W10 laptop. It installed fine, but the problem still exists. One strange thing about the reinstall though: the other computer was at 14.343.351, but the problem laptop still shows 14.343.0;
shouldn't it have updated to the .351 level with the reinstall?

The update troubleshooter did not find any problems.

How do I solve this Windows Update problem?

 

Sleep Problems - Strange wake up behaviors

Hey, thanks for the suggestion! I went into my BIOS and neither "MSI Fast Boot" or "Fast Boot" were enabled. I took a few pictures of the BIOS config and of the power-related options, and attached them below.