Is Tweaking.com tool effective and safe?

you know what's really strange? I have hp windows7 pc. couple of years ago my computer started doing really strange things, it still does, but I called MS from the number on their support information. I reached techs in Manila, they said right away that I have a virus and they could remove it for me for 145 dollars, the first option was I think 60 to remover the virus, the second option of 145 would cover the viru, and that i'd get continued coverage that would last a year I think. So I gave em the cc # and gave them remote access to my pc, while I was there with the girl at all times, there was no virus, they spent 2 days, up to senior techs levels that were unable to find the problem. After day one I told them I wanted to put a stop on the payment because of inaccurate diagnosing and no repairing nothing. They were ok with that, and asked if I could call them then next day they'd try again. I did. they installed malware bytes and tweeking.com, I've never used it. But I lost access to a google account  from setting up 2 step verification log in and used the google voice account that was on that gmail. I even remembered the password, and it wouldn't work because, the code, couldn't be sent to another phone. I lost all passwords, ms was one of them. to reset the password I had to access the google account. I explained to them that I can prove it is me by the date they did the service and they had a direct land line number to verify it. They would not reset the account or password, and told me that I had been scammed, and I didn't have any service for the remainder of a year after they worked on it. I find it hard to believe, because I called their support number. Also they said ms wouldn't of downloaded with my permission even, tweeking dot com. I lost a youtube account that I had built for 5 years. because of the 2 step verification mistake. Google "knows" everything about everyone, until that one looses a password, then they cannot find you, and don't know the one. Similar stuff.

I made a slight error.   The main tool is SFC.exe not svc.    Sorry. 

Next,  SFC.exe  must be ran as ADMINISTRATOR. 

When you run as administrator, you will automatically be dropped

into the correct directory, (command prompt path) and the tool 

will only then be available. 

Tweaking.com does this for you automatically. 

Tweaking.com is neither better, safer or worst than using SFC.exe manually. 

Tweaking.com is simply an easy way to run a series of batch processes

that can take care of many if not most problems than can plague an OS.

I've experienced similar frustrations with the tech support from MS, Dell, and *HP. Often I can sense in a few minutes that they don't know what they're doing and are just fishing. They run the same "troubleshooters" that I've already run. Then they tell me that they will escalate my case to a higher level--and the same process starts again.

In your case, if I understand correctly, you've never tried running the Tweaking program, so you're not commenting on its effectiveness or its safety.

* I paid HP $99.99 to fix an "issue" that none of their techs were ever able to fix--when I could have just bought a new printer for $100!

To run SFC.exe in administrator mode to the following:

It must be run from a DOS box/window

1. Click Start.
2. In the Start Search box, type cmd, and then press CTRL+SHIFT+ENTER.
3. If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.

I am running classic shell.

I click start

type cmd in search box.

     I get a flyout with many options.

One is cmd.exe

     I right click on cmd.exe and a new window/flyout pops up.

     SELECT/click  "RUN AS ADMINISTRATOR".

If your system has not been severely compromised or missing files or viruses

sfc.exe should be in:

C:\windows\System32

To run manually without tweaking.com:

When the DOS box is open in Administrator mode run as follows

sfc /scannow

It will take a very long time depending on hardware and CPU.

I am running windows 7 x64.  Up to Win 10, it is all the same.