If your Windows 10 Search is stuck on the This is taking to long to load message, you may try the following suggestions: Here are the details.

1] Click Refresh and see

Click on the Refresh button you see there and see. This has been known to help in most cases.

2] Restart Explorer.exe

If that does not help, open the Task Manager, right-click on explorer.exe and select Restart to restart the Explorer process.

Open Windows Services Manager, Locate Windows Search Service and select Restart.

4] Restart PC

Restarting your Windows 10 computer has been known to help in many cases.

5] Run Search & Indexing troubleshooter

Run the built-in Search & Indexing troubleshooter and see if it identifies and fixes the problem for you.

6] Uninstall software or Windows Update

If it happened after installing software or a Windows Update uninstall it and see

Disable Bing Web Search and see if that helps.

8] Run SFC and DISM

If there has been some system file corruption, then running the System File Checker and repairing your Windows system image is likely to help. Let us know if any of these suggestions here help you. All the best!