Taskkill Says No Running Instance? The Process Is Stuck
Taskkill says There is no running instance of the task? The process is stuck on its way out. Free the drive or program holding it, or try WMI.

Pick your device to see every fix in one place.
Taskkill says There is no running instance of the task? The process is stuck on its way out. Free the drive or program holding it, or try WMI.
MBR2GPT converts your Windows disk from MBR to GPT without deleting data. Validate first, fix a fourth or logical partition, then switch the firmware to UEFI.
Windows says Welcome, then Signing out, and you never reach the desktop? A damaged NTUSER.DAT or a bad Userinit value is behind it, and who fails tells you which.
App icons blank in Windows search results but fine in Start? Change the display scale and back, restart SearchHost.exe, or clear the search icon cache.
A static IP that turns into a 169.254 Autoconfiguration address means another device answered for it. Find the printer, camera or VM and pick a free address.
ClickOnce says your administrator has blocked this application? A trust prompt zone is set to Disabled. Set it back to Enabled in the TrustManager registry key.
Windows calls your only port Ethernet 2 and will not rename it? A hidden old adapter still holds the name. Remove it in Device Manager, then rename the connection.
A cloned disk shows Offline with a signature collision? Pick the disk you boot from first, then bring the other online or give it a new ID with diskpart uniqueid.
Your own taskbar covers Remote Desktop in full screen? An app by your clock wants attention. Answer it, restart Windows Explorer, or go full screen from a normal RDCMan window.
Scanning and repairing drive at every start means the dirty bit stays set. Query it with fsutil, run chkdsk /f /r from recovery, and use chkntfs /x only as a pause.