windows does not update and does not let install any software

Hello Experts, I have this pc using Windows 7.
All of a sudden it does not update anymore at all.
shows unknown error
and neither it lets install any otehr program like an antivirus
Show an error message saying it was not posible to installl

this pc was being used only with Windows defender.
normal work load.

Is there a fix for this or shall I format and insall again ?
Regards!
RGuillermoProject ManagerAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

systechadminConsultantCommented:
can you please provide the event logs and the exact error message
0
RGuillermoProject ManagerAuthor Commented:
Gaurav Singh
Yes can you tell me how to do that please ?
0
systechadminConsultantCommented:
open the eventwr. Start - run - type eventvwr and check for any relevant events there
0
Cloud Class® Course: CompTIA Healthcare IT Tech

This course will help prep you to earn the CompTIA Healthcare IT Technician certification showing that you have the knowledge and skills needed to succeed in installing, managing, and troubleshooting IT systems in medical and clinical settings.

Start This Course
systechadminConsultantCommented:
Also please open the command prompt as adminsitrator and type sfc /scannow. wait until the command completes
0
DonNetwork AdministratorCommented:
Post your windowsupdate.log

windows key +R type windowsupdate.log
0
JohnBusiness Consultant (Owner)Commented:
Do a Windows 7 Repair Install. You need the Windows 7 DVD and select the Repair option when it starts.

You appear to have a serious virus problem and really it may be better to back up and install Windows fresh as this will be a better long term solution.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
rindiCommented:
As thinkpads said, reinstallation is the best and usually fastest option. Defender alone is really not enough, you must use an AV program besides that.
0
DonNetwork AdministratorCommented:
"As thinkpads said" ???

Where?   LOL
0
JohnBusiness Consultant (Owner)Commented:
I am Thinkpads_User and always have been.
0
DonNetwork AdministratorCommented:
Sorry, LOL...the nicknames arent showing
0
JohnBusiness Consultant (Owner)Commented:
@rguillermo  - Thanks and good luck getting the computer going again.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows 7

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.