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How to install Windows Updates automatically or manually?

+1 vote
asked by
edited by

How to install Windows Updates? There is always the same error code when I attempt an update (error 646).

8 Answers

0 votes
answered by (264k points)

Error 646 is directly related to the AppData folder that is improperly defined in the registry database of your computer. Microsoft was aware of this problem and issued a fix for it.

Go to Start > Run and type regedit then navigate to the following key:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders\

The AppData path should look like: %USERPROFILE%\AppData\Roaming

Double click to change it and then perform another update attempt. If the error persists repeat the same procedure for the following keys in the registry editor:

  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders\

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders\

After there fixes, everything should be back to normal.

commented by (220 points)
reshown by
I looked in that just to know or to learn but there is some thing is missing in my laptop .
0 votes
answered by (14.7k points)

To fix the problem automatically(Much easier way)

Download the following file:

Click to download microsoft Fixit software.
enter image description here

In the File Download dialog box, click Run, and then follow the steps in the wizard.


The Microsoft Fix it wizard might be in English only, but the Fix it
works for all language versions of Windows.

0 votes
answered by (960 points)

I don't recommend you to update automatically. It is very frustrated when you use the computer and the automatic update will slow down the PC speed.

0 votes
answered by (220 points)

My computer runs Windows 7 and I would give you the method of 7 OS. Hope it can help you.
1. Open control panel.
2. Click on System and Security. (This option can be viewed when the options are viewed by category)
3. Click on Windows Update. And there will list several options at the left column.
4. Select Change settings in the left column.
5. You can select the way how windows install the update by checking over the drop-down options after you click the tab beside the shield icon.
Last step: Click OK to save all settings.

0 votes
answered by (220 points)

Search the update from start button ->click Windows update option->click check for update->click check box for any important update-> click ok->click install update-> click finish. If doesn't work, vilmatech online support can help you.

0 votes
answered by

you can try this steps, ihave tried, i hope your problem will be resolved by my answer
step 1 open control panel step 2 search in control panel " windows update"
or open system and security into control panel
step3 you find windows update there click on windows update
step4 you find there change setting click on change setting
step5 there you will fing important updates
see at down of the "important updates"
you find options
you will see the first option is install updates automatically choose this option

and click ok

0 votes
answered by (340 points)

process to update your system:
First connect with Internet
After that go to control Panel & open It
After that again click on window updates
Then selected how your windows should update, after that hit the save change
Again click On ok button

0 votes
answered by (220 points)

I had a problem related to this before then I received an answer to download windows update troubleshooter and it worked jut perfect solve my problem.
Go to Microsoft download center and look for it.

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