Gerai, darom sąrašą visų išbandytų variantų:
1. Naujo userio sukūrimas
2. Ne visai į temą, bet gal kas nors iš čia: 
https://www.bleepingcomputer.com/forums/t/618800/repair-windows-explorer-not-starting-during-login-into-windows-os/
3. Reregister the Shell's Registry Entries
4. Delete Folder Settings
5. Delete The Thumbnail and Icon Caches
6. A Clean Boot for Explorer
7. Clear File Explorer history

smulkiau apie punktus 3-7:

To See if a Fix is Available

In Control Panel (and select Classic view in the left hand pane) choose 
Problem Reports and Solutions (type problem in Start's search box), go 
to Problem History, right click your error and choose Check For Solution.

You may also right click and choose Details for more info. Post those 
details here. The Fault Module Name is the important information.

If the problem affects Control Panel press Winkey + R and type wercon.

Close Explorer and Start a Command Prompt

Close any Explorer windows
Start - All Programs - Accessories - Right click Command Prompt and 
choose Run As Administrator.
Click Start. Ctrl + Shift + Right click a blank spot (just above the 
power buttons is one place) then Exit Explorer.
Press Ctrl + Alt + Delete then Task Manager.

Check all explorer processes are closed. On the Process tab select 
explorer and right click and choose End Process, repeat if more than one 
explorer in the list.

Then to restart explorer after trying each of the following
Press Ctrl + Alt + Delete and choose Task Manager
In Task Manager click the File menu then New Task (Run) and type explorer

Reregister the Shell's Registry Entries

Close Explorer as above then type in the command prompt (or copy and 
paste by right clicking in the Command Prompt window and choosing Paste).

regsvr32 /i shell32
regsvr32 /i urlmon.dll
regsvr32 RPCRT4.dll
regsvr32 PROPSYS.dll
regsvr32 MSCTF.dll
regsvr32 cscui.dll
regsvr32 rsaenh.dll
regsvr32 timedate.cpl
regsvr32 ATL.DLL
regsvr32 OLEACC.dll
regsvr32 actxprxy.dll
regsvr32 USERENV.dll
regsvr32 msshsq.dll
regsvr32 NaturalLanguage6.dll
regsvr32 thumbcache.dll
regsvr32 WINTRUST.dll
regsvr32 MMDevAPI.DLL
regsvr32 audioses.dll
regsvr32 audioeng.dll
regsvr32 ExplorerFrame.dll
regsvr32 msi.dll
regsvr32 FirewallAPI.dll
regsvr32 netshell.dll
regsvr32 pnidui.dll
regsvr32 QUtil.dll
regsvr32 wpdshserviceobj.dll
regsvr32 WINHTTP.dll
regsvr32 QAgent.dll
regsvr32 PortableDeviceApi.dll
regsvr32 wbemprox.dll
regsvr32 wbemsvc.dll
regsvr32 fastprox.dll
regsvr32 imapi2.dll
regsvr32 wshext.dll
regsvr32 gameux.dll
regsvr32 msxml6.dll
regsvr32 vbscript.dll
regsvr32 jscript.dll
regsvr32 wshext.dll
regsvr32 wshom.ocx
regsvr32 wshcon.dll
regsvr32 scrrun.dll


Delete Folder Settings

Close Explorer as above then type in the command prompt (or copy and 
paste by right clicking in the Command Prompt window and choosing Paste).

reg delete "HKCU\Software\Classes\Local 
Settings\Software\Microsoft\Windows\Shell" /f

reg delete 
"HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Streams" /f

reg delete 
"HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\StuckRects2" /f

Delete The Thumbnail and Icon Caches

Close Explorer as above then type in the command prompt (or copy and 
paste by right clicking in the Command Prompt window and choosing Paste).

attrib -r -s -h "%userprofile%\AppData\Local\*.db"

del "%userprofile%\AppData\Local\IconCache.db"

del "%userprofile%\AppData\Local\*.db"

A Clean Boot for Explorer

It might be caused by a shell extension.

Explorer (explorer.exe) is the program that is the Start menu and 
taskbar, folder windows, and the desktop (which is a folder window).

Explorer is built on addin programs called Shell Extensions. The 
standard ones are supplied by Microsoft but programs add their own.

Download Autoruns from 
http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx
Close any Explorer windows
Start Autoruns by right clicking and choose Run As Administrator
Click Options menu - Filter Options and tick Hide Microsoft entries and 
clear Include Empty Locations
Go to the Explorer tab and untick everything left.
Click Start. Ctrl + Shift + Right click a blank spot (just above the 
power buttons is one place) then Exit Explorer.
Press Ctrl + Alt + Delete and choose Task Manager.
Check all explorer processes are closed. On the Process tab select 
explorer and right click and choose End Process, repeat if more than one 
explorer in the list.
Click the File menu then New Task (Run) and type explorer
and if it helps, reenable one by one to identify which one.

2018-01-16 11:15, Arnoldas rašė:
> nepadeda :(