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What will i do, my computer is running good if my internet not open, but if connected all windows not working.. pls help me?

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The symptom described — system runs normally when offline but “all windows not working” once the network is connected — can be caused by malware, a corrupted network stack, driver faults, or even benign things like stale mapped network drives or a misbehaving shell extension. As pointed out, a malware scan is a sensible first step; the checklist below expands that into a systematic troubleshooting order so the root cause can be identified rather than guessing.

  1. Boot into Safe Mode with Networking and observe whether the problem appears.
  2. If Safe Mode is OK, run an up-to-date anti-malware scan (use a reputable on-demand scanner in addition to any real-time AV).
  3. Inspect Event Viewer (System/Application) at the time of the failure for explorer.exe, svchost, driver, or service errors.
  4. Perform a clean boot (disable non-Microsoft services and nonessential startup items) to isolate third-party software or shell extensions.
  5. Check for mapped network drives, logon scripts, or network printers that might hang Explorer when the network is present — temporarily disconnect them.
  6. Reinstall or roll back the network adapter driver if the issue coincides with the driver or adapter.

Safe, useful repair commands to run from an elevated prompt:

sfc /scannow
netsh winsock reset
netsh int ip reset
chkdsk c: /f

For deeper diagnostics, use Autoruns to disable shell extensions, Procmon to trace Explorer crashes, or boot from rescue media to scan the disk outside the running OS. Always back up important data before major repairs or registry edits, and avoid running multiple real-time AV products simultaneously. If thorough cleaning, driver fixes, and a clean boot do not resolve the issue, a System Restore to a known-good point or a clean OS reinstall is the reliable final option. correctly notes that HijackThis-style logs can help — collect logs and error timestamps before posting for targeted analysis.

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thanks redburn hjack this is really excellent tool...

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