chrome wont update

Well according to Google here's some info of Google Update:

Chrome’s recovery component tries to repair Google Update in case it is broken.

They don't say what breaks it.

Try this:

Type: chrome://components

in the address bar and see if you can update anything listed.

You've done everything suggested here: Fix Chrome update problems & failed updates - Chrome Help except "check for malware" - so maybe run some scans. I'm not a malware removal expert. I do not think that lock icon should be showing up on that folder.

Did you try running "junction box" and "link magic" ?

Try running Junction Box.

Junction Box restores default junctions and permissions.

djpete said:

i even did a restore from 20 days back of a ghost backup.
Same!

Is that a full system image backup that restores your windows partition? If so try a router reset (usually there's a button on the back) and also reboot.

Another thought: Try changing DNS just in case there's some corruption.

See the tutorial here: DNS Addressing - How to Change in Windows 7

An easy way to change DNS: Paypal login returns "obsolete cipher suite" error then freezes

Another thought - check your system clock.

Is it accurate or only a few seconds out? Check here: Accurate Time