web page only changes after restarting pc

dabdala 
Take into account that it not just takes up to an hour before the entire report pulished to web will be updated, but it will be updating parts of the report and data in different time. Often the report will be updated just in a few minutes and no one will notice any issues, but sometimes  it can realy confuse report users (for example during a few minutes one visual will show old data, other visual - new data). If possible update your report during the time when there is a minimum of active users (e.g. in the middle of a night). Notify your users (if possible) that report can behave strange while it's being updated.

The cache is long-lived. If you update the report definition (for example, if you change its View mode) or refresh the report data, it can take approximately one hour before changes are reflected in the version of the report that your users view. Since each element and data value is cached independently, when a data update occurs a mix of current and previous values can be shown to a user. Therefore, we recommend staging your work ahead of time, and creating the Publish to web embed code only when you're satisfied with the settings. If your data will refresh, minimize the number of refreshes and perform the refreshes at off hours. I
https://docs.microsoft.com/en-us/power-bi/collaborate-share/service-publish-to-web

Mark my answer as a solution if it solved your problem (if knowing that there is no solution and you just need to wait is a solution...) 😉