I have one of those cheap Chinese AllDayMall A88s tablets. 7 inch. When it comes on all is fine unless you try to open the browser. Then things start popping up that are quite unsavory. So I did a factory reset but it seems all that junk is built in.

Going into settings, apps, I was able to identify and stop a lot of it. But as soon as I opened the browser it went nuts showing more.

I got the unit to tell me to sideload a file via the menu that comes up when you hold down-volume and power. Cool. Following somebody's advice I installed the Android SDK to do it. But then found out that all I needed was the ADB toolkit with adb.exe. (Don't need the SDK at all it turns out)

So I plugged it into my Win7 machine which installed an Alcatel driver for it. I could see it in device manager.

Typing

adb device -l

gave me a long number then the word sideload (instead of the name of the device)

Pushing on, I found out for positive certain that it needs Alldaymall-A88X-android 4.4.2-bsf.rar and thought I was on a roll. But no, the download link is to a dropbox account that says not found.

This is progress. It can easily be set to receive a sideload. Driver installed and working. Necessary file identified.

But not available. Dead End. <sigh> Lots of smoke but no fire.

Switching gears, I used the Windows version of one-click KingoRoot which said it succeeded. Went to the play store to get SU and a good file explorer so I can seek and destroy.

During the process of setting up for Play Store it wants to log in, so I let it connect to WiFi. Big mistake. I never even got to the part of credentials with Google. Pop-ups on every screen and unresponsive touch panel. OK, reboot.

I installed a mouse via an adapter into the USB port but it worked the same as the screen. Just fine. Until it didn't.

Rebooted; then with the stock file explorer I went into the DCIM directory and under Camera there were a bunch of porn photos and a video, which I successfully deleted.

I am not sure how to find the built-in junkware so I can remove it.

Now I am worn out for the night and am hoping someone can give me some advice on how to clean it up well enough that it can be useful.

I made some headway but this has taken hours. So now I turn to Android Stack Exchange to get some expert opinions. You can see that I have done my homework and made a little progress.

Last thing to do tonight is to uninstall the SDK.

The question is in the title: Now what?