If you do not know how to do it, just click on the time/date shown on the taskbar and click the date and time Setting.
Enable automatic synchronization. Note: If you notice that the time is right, it could be that the time zone does not match your region, you need to change it, this will cause the time change, thus deactivating and activating again will return to adjust.
Resolve error 0x803F7000 using reset command:
Press the Windows key plus the letter RWindows + R
A small box below will appear just type wsreset
Then click OK or press Enter.
Another method is to click the Start button and in the search box type wsreset.
Click the store icon and then click " Run as Administrator "
Rename Folder to fix error 0x803F7000:
You will have to access the folder AppData for this you have to enable the option to view hidden folders and system files.Open the file explorer you can use shortcut keys Windows + E
or search for File Explorer.
Now open the file explorer click File.
Click Change Folder and search options.
Click on the tab Display Mode.
Find the option Hidden files and folders and select the Show files, folders, and hidden units click Apply.
Still in File Explorer open your default local disk
in my case is the Local Disk (C :)
Click the folder Users.
Within the Users folder, access folder that matches your username in my case it is Rocco.
Within your user folder access the folder AppData.
Inside the folder AppData access the folder location.
In the folder Local access the folder Packages.
Look for the Store folder Microsoft.WindowsStore.
Click folder localcache inside it; you will find a folder named Perusercache__00067FFEA9DC7BCE your folder may have a different name. Rename the folder and type .old at the end of the folder name.
Restart Windows and now your windows store will work perfectly :)