After activating my computer product, I can t get in the master to get points!

1) When logging in, a problem is prompted that prevents Windows from properly checking the license of this machine.

Error is: 0x80070002

Solution: Enter safe mode, find it in the installation disc and directory below), copy it to the hard disk, such as c: below, run cmd, (in c:

Run the dos command under the disk: expand,) If there is a problem with decompression, you can use winrar to decompress, after decompression, you will get a file, copy this file to the installation directory of the system: windows system32 below, restart it.

2) When you start Microsoft Windows XP, you may receive the following error message:

An issue prevents Windows from accurately checking the license for this computer. Error: 0x80070002. After 'OK', the system logs out and falls into an endless loop.

Cause: This issue occurs if any of the following conditions are met:

The default security provider in Windows XP has changed.

The drive letter of the system drive has changed.

Reset the default security provider in Windows XP.

To reset the default security provider in Windows XP, remove the relevant registry key from the Windows registry. To do this, follow these steps:1

Start your computer. Press F8 on startup to boot the computer in safe mode.

2.Start the Registry (.)

3.Delete the following entries from the Windows registry

hkey_users\.default\software\microsoft\cryptography\providers

4.Quit the registry.

5.Restart your computer.

If it still doesn't work, it is recommended to use partitioning software, (or enter DOS and use the format c: q command) to format the C drive, and then reinstall the operating system!

It's a trivial matter, you can clarify the problem, what kind of computer product, is the machine you talking about a computer?

I'll tell you.

First of all, this problem arises because your system is not genuine, so you need a file to deal with this authentication issue:

See if there is this file in your system directory C: Windows System32, if so, please copy it out of the C disk for backup. If not, ** one from the net, generally for size.

Next, run the SP3 update, don't choose to restart the computer immediately after the final installation is completed, exit first, copy it to C: Windows System32, and then reboot. Here's how I got it.

Of course, some people choose to reboot immediately, and then press F8 to copy from safe mode to C: Windows System32, but it is troublesome.

Because you don't have a genuine system, there is such a problem, and the boot presses f8

Select Safe Mode to enter - Add Removal Program - Uninstall Patch.

Or opt for one-click recovery.

This is a system error.

Reinstall. Or try powering on and press F8

Select the last correct configuration.

Start with QB, this is the simplest, and then learn C, C++, VB, VC, and assembly and other slightly more complex ones, programming to take your time, copy the example questions in your own books, and then test it on the computer, and then write it yourself, make up more, and be proficient. It's much easier to learn other advanced languages.

Let's sell this C language first to see that there is nothing difficult in the world, but I am afraid of people who have a heart.

Start with C language, and if you learn C language well, you won't have any problems learning the rest.

Go to the Safe Mode page and select the last correct configuration. Then reactivate the software again, you don't have what I can give you.

There is an option. Boot as per the last normal configuration.

Power on and press F8 to enter the system, safe mode.

If there is a conflict between two pieces of software, delete one of them, otherwise the computer will not work properly.

System problems, reinstall the system.

Hard disk space is not enough, or the memory memory is too small, the CPU is poor, first make sure that you install it to**, if you install it to the C disk, it will definitely increase the transmission of the system, and the CPU can't withstand it, if it is another disk plus root memory, at least add 1G.

The virtual memory settings are set to be multiple of the physical ones because they are too small.

There are three major elements of playing games: CPU memory and graphics card.

You don't have to play games, or you don't want to draw.

In addition, the system space is not reasonably allocated Drawing software and games should be installed on other disks, not installed on C disk.

Is it installed on the C drive? Let's change places.

Repartition the hard drive and then reinstall the system to see what happens.

Whoever is at the highest level is a computer master. Hehe.

If the machine is fine.

Reinstall QQ to try it out.

It is recommended that you uninstall QQ and then use optimization software such as Super Rabbit 360 to repair and optimize your system, and then reinstall QQ

Prime Divisor 2

The maximum prime approximate of a is.

When 2 is 1200, only 2 20483 is 1800, 2, 3

a=2^m*3^n >1800

m=0 n=7 a=2187

m=1 n=7 a>2187

m=2 n=6 a=2916

m=3 n=5 a=1944

m=4 n=5 a>1944

m=5 n=4 a=2592

m=6 n=4 a>2592

m=7 n=3 a=3456

m=8 n=2 a=2304

m=9 n=2 a>2304

m=10 n=1 a=3072

m=11 n=0 a=2048

If a's maximum prime approximate "= 5

a>3000

So min is 1944

s(dap)=s(dpq)=s(dcq), because s(dae)=s(dcf), so s(aep)=s(cfq), because ap=cq, so ef is parallel to ac, you can set pq:ef=x,s(dpq)=s, then,s(adc)=3*s,s(aep):s(apd)=ep:

pd=(1-x) x,s(aep)=(1-x) x*s,s(aed)=1 x*s,s(pqfe)=(1 (x 2)-1)*s,so s(aefc)=s(pqfe)+2*s(aep)=((1 x) 2+2*(1 x)-3)*s,ef:ac=1 (3*x),s(abc)=9*x 2 (9*x 2-1)*s(aefc)=9*(1+2*x-3*x 2) (9*x 2-1)*s,s(abcd)=s(abc)+s(adc)=(18*x+6) (9*x 2-1)*s=4*s(aed)=4*1 x*s, so.

9*x+3)*x=18*x 2-2,9*x 2+3*x=18*x 2-2,9*x 2-3*x-2=0, and the solution is x=2 3. It's not hard to do it.

It is easy to prove that AD is parallel to BC and AB is parallel to CD, so it is a parallelogram.