Checklists for software errors, setup, and tool workflows.

Fix Windows Defender Missing After Update

After a Windows update, some users find that Windows Defender is missing from the system tray, Se...

How to Fix Windows Update Error 0x8024402c

When you see Windows Update error 0x8024402c, it usually means the update service can't reach Mic...

Fix BitLocker Backup Failed Error 0x80070057

When you see "BitLocker backup failed" with error code 0x80070057 in Event Viewer or the BitLocke...

How to Fix Microsoft Store Error 0x80073cf0

You open Microsoft Store to download or update an app, and instead get error code 0x80073cf0. Thi...

Fix BitLocker 'Cannot Access Drive Permission Denied' Error

Understanding the Error

You see 'Cannot access drive. Permission denied' when trying to o...

Fix Windows Defender Sync Error Across Devices

You see a sync error in Windows Security that says something like “Something went wrong. Try to s...