How to Delete a File That Won't Delete in Windows
When Windows says a file is in use, access is denied, or the path is too long, close the locking program and use safe steps, not unlocker downloads from ads.
File Permissions
Access denied messages and when you should not take ownership of system folders.
Start with the closest symptom
These guides are grouped here because the first checks overlap. Open the guide that best matches what you see now, then use its verification section before moving to a broader fix.
Related tools
- File Extension Lookup, Look up common Windows file extensions and see what they usually are, what opens them, and when to be careful.