Common Issues

Right after a major update, Windows reindexes files and finishes background optimization tasks — this can take a few hours and looks like a slowdown. If it persists past a day or two, check the Startup tab in Task Manager for anything the update may have re-enabled.

You can, but it's not recommended unless you're installing another antivirus in its place. If a specific file keeps getting blocked, add a targeted exclusion instead of disabling protection entirely.

The stop code (e.g., MEMORY_MANAGEMENT) identifies the general category of failure — memory, a driver, storage, and so on. It's not usually specific enough to fix on its own, but it tells you where to start looking. See our general BSOD guide for a step-by-step approach.

Most often it's low disk space, a corrupted update cache, or a specific bad file in that update package. Freeing up space and running the Windows Update Troubleshooter resolves the majority of repeat failures.

There's rarely urgency. It's reasonable to wait a few weeks after a major release so early bugs get patched, unless you specifically need a new feature or your current version is approaching its end-of-support date.

It could be a blue screen that auto-restarted before you saw it (check Reliability Monitor for a record of it), a scheduled Windows Update installing overnight, or a power issue. Reliability Monitor will usually tell you which.

Only if it's a traditional hard drive — and Windows already does this automatically on a schedule. If you have an SSD, never manually defragment it; Windows handles SSD optimization differently (TRIM) and manual defrag can shorten its lifespan.

Check Task Manager for a process using unexpectedly high CPU — background updates, indexing, or a misbehaving app are common causes. If it happens even at idle, dust buildup restricting airflow is also a frequent culprit worth checking physically.