Boot (from windows icon to login screen) takes 12 minutes.

Anything you could add to your System Specs might help in solving your problem. The more we know about the components, the better.

bigmck said:

Anything you could add to your System Specs might help in solving your problem. The more we know about the components, the better.

It's most likely a default system so the spec are here. Dell OptiPlex 990 DT Specifications I'm just assuming it's a DT.

A infected computer can cause this type of problem also.
A bunch of browser add on and extensions can also cause this problem.

Programs I would use if my computer had this problem and it did today.

AdwCleaner
Malwarebytes anti malware
Super anti spyware
Eset free online scanner

***We need your system spec's filled in completely (My System Specs) is the place to install them***
Including your security programs.

Jack

Layback Bear said:

A infected computer can cause this type of problem also.
A bunch of browser add on and extensions can also cause this problem.

Programs I would use if my computer had this problem and it did today.

AdwCleaner
Malwarebytes anti malware
Super anti spyware
Eset free online scanner

***We need your system spec's filled in completely (My System Specs) is the place to install them***
Including your security programs.

Jack

Check my post #12 just to get a heads up!

Lance1 said:

Layback Bear said:

A infected computer can cause this type of problem also.
A bunch of browser add on and extensions can also cause this problem.

Programs I would use if my computer had this problem and it did today.

AdwCleaner
Malwarebytes anti malware
Super anti spyware
Eset free online scanner

***We need your system spec's filled in completely (My System Specs) is the place to install them***
Including your security programs.

Jack

Check my post #12 just to get a heads up!

Thanks for the suggestion, but we do need to know what is in it and not an assumption in order to help find the problem.

When you get it booted, post this. Disk Management - Post a Screen Capture Image

bigmck said:

Lance1 said:

Layback Bear said:

A infected computer can cause this type of problem also.
A bunch of browser add on and extensions can also cause this problem.

Programs I would use if my computer had this problem and it did today.

AdwCleaner
Malwarebytes anti malware
Super anti spyware
Eset free online scanner

***We need your system spec's filled in completely (My System Specs) is the place to install them***
Including your security programs.

Jack

Check my post #12 just to get a heads up!

Thanks for the suggestion, but we do need to know what is in it and not an assumption in order to help find the problem.

Keep in mind that most users that post have no idea how to build and configure a system. For example this quote from the OP's first post:

I've been trying a lot of suggestions else where but so far not getting any results. Currently trying to read the even viewer but a little stuck as I don't know enough to understand how to treat the errors listed.

It's default.. But let's Wait and see what the OP says..

It's simple.
We do not need to go to web sites or looking through post to find system specs.
That is what the (My System Specs) is for.

It's not hard to do. This tutorial by Brink will be helpful.

System Info - See Your System Specs


Once in the My System Specs a lot can be added. It's very useful to those that want to help.

Look at my (My System Specs) and you will get some ideas of useful information.

Jack

I had this happen to a laptop last year. 20 minute boot time. It turned out to be a failing hard disk (failed SMART, and checkdisk found a ton of bad sectors). Once I replaced it and reinstalled, boot time was under a minute.

Just food for thought in case there's no virus or any other malware/driver issues.