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Windows 7: Access denied everywhere and low memory warnings


24 Nov 2011   #1

windows 7
 
 
Access denied everywhere and low memory warnings

Hi

I have suddenly started to get access denied warnings on my PC running Windows 7 Home Premium.

I am getting the following - 'The system administrator has set policies to prevent this installation'

And on trying to uninstall a program, in this case the Nokia software Updater -

'You do not have sufficient access to uninstall Nokia Software Updater please contact your system administrator'

(in fact I can't uninstall any program)

I have tried to follow advice from some sites I googled, but every time I try to get into any admin type stuff I get denied entry.

I have also all of a sudden started getting low memory warnings although I have 2GB of ram installed on my laptop. Tried defragmentizing but again denied access !

This problems have all seemed to start at the same time everything was fine before.

Can anybody help?

Steve

My System SpecsSystem Spec
.

24 Nov 2011   #2

Windows 8.1 Pro (x64)
 
 

You probably installed some malware. Try running Malwarebytes in safe mode.
My System SpecsSystem Spec
29 Nov 2011   #3

windows 7
 
 

Hey thanks for the reply.

I tried downloading both spybot and the malwarebytes software but the problem itself on the PC prevented it. So then i tried downloading both programs on a disc drive from another PC. Again my PC stopped it. So I am stuck now.

Any suggestions?

Or am i going to have to do a fresh re-install of windows 7 again!

Steve
My System SpecsSystem Spec
.


29 Nov 2011   #4
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

Hello Steve,

You could use another computer to create a bootable USB/DVD of Microsoft Standalone System Sweeper to scan your computer at boot with to see if it may find and get rid of any malware.

Hope this helps,
Shawn
My System SpecsSystem Spec
30 Nov 2011   #5

windows 7
 
 

Hi Shawn

Thanks for that, you guys are great, just downloading right now to a USB drive, fingers crossed it will work!
My System SpecsSystem Spec
01 Dec 2011   #6

windows 7
 
 

good news and bad news.

Managed to get the scan working and it dredged up a Trojan and Adware virus. I removed the two offending items and re-booted. However I am still getting access denied warnings

So then I tried updating the sweeper program itself thinking that maybe the update might dredge up more viruses.

Did a full scan again - but it came up clean!

So I am baffled now, any suggestions?

Steve
My System SpecsSystem Spec
01 Dec 2011   #7
Microsoft MVP

Windows 7 Ultimate 32bit SP1
 
 

What was the name of the Trojan?
My System SpecsSystem Spec
01 Dec 2011   #8

windows 7
 
 

Hi it's win32/matex.gen!E

Does that help ?
My System SpecsSystem Spec
01 Dec 2011   #9
Microsoft MVP

Windows 7 Ultimate 32bit SP1
 
 

Did you spell that right? matex or malex?
Trojan:Win32/Malex.gen!E [Microsoft] | ThreatExpert Statistics
My System SpecsSystem Spec
01 Dec 2011   #10

windows 7
 
 

Oops yes typo, it's malex
My System SpecsSystem Spec
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 Access denied everywhere and low memory warnings




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