Why did I get error 0x80000155?

Windows Update continous fails to search for Updates or cannot install them. The source of this problem could be various things as
> Windows Registry
> Windows Filesystem
> Internet access

> Windows Update service
> File corruption
> Misconfiguration
> Adware
> Virus and Malware

How to fix Windows Update error 0x80000155?

However, if you’re technically savvy, you can try the steps below:

1. Click Start and start typing on your keyboard for "services.msc"

2. In your search results "services.msc" should show up. Open it with a click.
3. A new windows will open containing all Windows services on your system.

4. Search for "Windows Update"
5. Right-click the "Windows Update" and then click Stop.

We will now clean the Windows Update temporary cache folder:
1. Hold your windows-key pressed and hit "R" key simultanous.
2. A small new windows will appear.
3. Type %windir%\SoftwareDistribution\DataStore in this new window and click OK.
4. This will open Windows Explorer on the correct location.
5. Delete all contents of this folder. (Hint: Use Ctrl + A to select all files and folders)

Now we will start the Windows Update Service again:
1. Switch back to the windows Services.
2. Locate Windows Update.
3. Right-click on it and choose Start.


If the problem still persists, you can run the System File Checker (SFC) utility. This handy in-built tool will check your filesystem.
1. Click Start and start typing on your keyboard for "cmd".
2. In your search results cmd should show up with an black icon.
3. Right-click it and select Run as administrator.
4. If you are prompted for the admin password, enter the password and click OK.
5. A new completely black windwos will open. You can type commands directly into this window.
6. Type sfc/scannow and press Enter.
7. This process will take a long time. You can minimize this black windows and work on.
Come back to the black window after a time and check if the process finished.
As soon as the SFC process finished, restart your computer. After the restart you search for Updates again.


You are still facing the same issue?

1. Restart your computer.

Next thing is to clean Windows Update download path. These steps are only for expirienced user! If you mess up your computer with Regedit, you could loose your files! Take care or use a professional tool to investiagte your computer.
1. Hold your windows-key pressed and hit "R" key simultanous.
2. A small new windows will appear.
3. Type regedit in this new windows and hit Enter.
4. In the new windows you have a navigation on the left side. Use it to navigate to
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate
5. Once you found it, search for WUServer and WIStatusServer in the right hand pane.
6. If they are not listet we cannot clean the download path. Othwerwise delete both.
7. Restart your computer.

Try to search for new Updates again.
You are still facing this issue? I think this is not an usual problem and your computer should be checked by professional.
Try to look for a solution here or search further in the search box below.



Advanced information

The following Windows verisons are affected by this error:
> Windows Vista
> Windows 7
> Windows 8
> Windows 8.1
> Windows 10
> Windows 10 Redstone 2
> Windows 10 Creators Update
> Windows Server 2008 R2
> Windows Server 2012
> Windows Server 2016
0x800001552 Windows errors with m0x80000155 error Resolve Removing auch sure Steps mobile0x80000155 WRMSR Update then Fixing Message promptly When correct 0x01000011 advisable make workBesides Custom 0x00000000 doesnt interfere productivity could Simple crop acquainted Automatic display Recommend Fixer deal avoid clean Using fast very Clicks Cool XcSHAUpdate 0x80000154-memory-problem">0x80000150 XcSHAFinal xbecfg happening culprit changing 0x80000153 XcHMAC 0x80000154 XcRC4Crypt 0x80000152-0x00000001-master-0x80000153">0x80000151 XcRC4Key 0x80000152 applications ZipDatei enthalten 0x80000137 Hardwareluxx Quiet jetzt Prozessoren occurring several programs 03092014 0x50006840 0x50005400 Codes help Restore Click Used Ordered Category Whats forbit next from troubleshooting Start Menu enter Repair There were some lengthy Ways generally followed repeat process later well problems installing updates system Solved Motherboards Toms Motherboard again what overkilling 0x80000133 0x40003840 0xC0010015 0xC0010068 10072012 0xC0010067 0x40002C01 Mail Microsoft Community 13112012 found along safety cannot operation open Live complete Close program wait