You receive a "0x80070490" error code when you use Windows Update or
Microsoft Update Web sites to install updates:
The above notwithstanding, there is a very good chance that you are seeing
the effects of a hijackware infection!
NB: If you had no anti-virus application installed or the subscription had
expired *when the machine first got infected* and/or your subscription has
since expired and/or the machine's not been kept fully-patched at Windows
Update, don't waste your time with any of the below: Format & reinstall
Windows. A Repair Install will NOT help!
1. See if you can download/run the MSRT manually:
NB: Run the FULL scan, not the QUICK scan! You may need to download the
MSRT on a non-infected machine, then transfer MRT.EXE to the infected
machine and rename it to SCAN.EXE before running it.
2. [WinXP ONLY!! =>] Run the Windows Live Safety Center's 'Protection' scan
(only!) in Safe Mode with Networking, if need be:
3. Run a /thorough/ check for hijackware, including posting the requested
logs in an appropriate forum, not here.
Checking for/Help with Hijackware
**Seek expert assistance in
or other appropriate forums.**
If the procedures look too complex - and there is no shame in admitting this
isn't your cup of tea - take the machine to a local, reputable and
independent (i.e., not BigBoxStoreUSA) computer repair shop.
Start a free Windows Update support incident request:
Support for Windows Update:
For home users, no-charge support is available by calling 1-866-PCSAFETY in
the United States and in Canada or by contacting your local Microsoft
subsidiary. There is no-charge for support calls that are associated with
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
> I have a problem with Windows Update. It responds with a red topped box
> stating that "Windows could not search for new updates" "Error(s) found:"
> "Code 80070490 Windows Update encoutered an unknown error."
> I clicked the get help with this error, but it din't help. I tried the
> again" button with the same results, over and over and over....again.
> System Specs:
> Mfgr/Model: Acer Aspire M5630
> Rating: 3.4
> Processor: Q660 Quad Core 2.4 mhz
> OS: Vista Home Premium 32 bit
> Memory: 2047 MB
> Broad band cable connection - (I can reach the MS servers via ie)
> Any help is greatly appreciated: