How to Fix Windows 11 Search Indexer High Disk Usage and Slow File Explorer Performance

Performance & Troubleshooting KB-1101

Summary

This guide helps you troubleshoot and resolve: How to Fix Windows 11 Search Indexer High Disk Usage and Slow File Explorer Performance. Follow the steps below to fix the issue.

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Common Causes

Windows Search Indexer is a background service that catalogues files on your computer to make searching faster. When this process consumes excessive disk resources, File Explorer may feel sluggish, folders can take longer to open, and overall system responsiveness can suffer. This guide walks you through steps to reduce disk usage caused by Windows Search Indexer and restore normal performance on Windows 11.

Quick Fix Steps

Restart your computer to clear temporary indexing tasks.
Pause Windows Search Indexing temporarily.
Rebuild the search index if corruption is suspected.
Limit indexed locations to reduce disk load.

Detailed Instructions

Restart Your Computer

A restart stops any stuck indexing processes and clears temporary disk activity.

Select Start, then select Power.
Select Restart.
After Windows restarts, check if disk usage has returned to normal.

Pause Windows Search Indexing

Pausing indexing can immediately reduce disk activity while you determine the cause.

Select Start, type Indexing Options, and press Enter.
Select Pause to temporarily stop indexing.
To resume indexing later, reopen Indexing Options and select Resume.

Rebuild the Search Index

If the index is corrupted, rebuilding it can resolve high disk usage caused by repeated indexing errors.

Select Start, type Indexing Options, and press Enter.
Select Advanced.
Under Index Settings, select Rebuild.
Select OK to confirm.
Windows will begin rebuilding the index. This may take several hours depending on the number of files.

Limit Indexed Locations

Reducing the number of folders Windows indexes lowers disk usage.

Select Start, type Indexing Options, and press Enter.
Select Modify.
Clear the checkboxes for folders or drives you do not need indexed, such as large media drives or backup folders.
Select OK, then select Close.

Run Search and Indexing Troubleshooter

Windows includes a built-in troubleshooter that can detect and fix common search and indexing problems.

Select Start, then select Settings.
Select System in the left pane.
Scroll down and select Troubleshoot.
Select Other troubleshooters.
Locate Search and Indexing and select Run.
Follow the on-screen prompts to detect and fix common search problems.

Disabling Windows Search means file searches in File Explorer and the Start menu will be slower, as Windows will search files in real time instead of using an index.

Avoid disabling Windows Search permanently unless you are certain you do not rely on file search. Re-enabling it later will trigger a full reindex, which temporarily increases disk usage.

If you have completed these steps and continue to experience high disk usage or slow File Explorer performance, Open a Ticket with 220 Internet Services support for further assistance.

Still Having Issues?

Need more help? If the issue persists after trying these steps, please open a support ticket and our team will assist you.

💻 Open a Ticket