What should I do if the win8.1 app store can't be used?

Method 1: In the service, the Windows Update service is enabled (set up automatically).

Method 2: In the computer settings, select “Accounts”, and then select “More online accounts”, enter the password and return.

法三:

First Step,

(1) Win+r, enter: %temp%

(2) temp folder All items in the project are deleted.

Step 2,

(1) Win+r, enter: Services.msc

(2) View four services:

1) Background Intelligent Transfer Service2)Cryptographic Services

3)Windows Update

4)Windows Installer

(3) Turn off the above four services;

(4 C: /Windows /delete the SoftwareDistribution folder; (5) re-open the service above the four services.

Step 3,

(1) Win+r, enter: wsreset

(2) Restart the computer.

Step 4,

(1) Log in to your computer using your Microsoft account.

(2) Check the update again, enter the app store, and download the app.