XP is very old and now dangerously unsupported so it is likely that you are running an out of date browser. What version of Firefox and Chrome are you using? You option are to buy a license key for W10 (about £10 in the UK) or - if your pc is too old to run W10, install something like Linux Mint Mate Edition or straight Ubuntu. You may have to use an older 32 bit edition or use one of the newer 32bit Linux distributions such as MX Linux.

@andyfierman Of course. But for a few months everything worked well, without problems. XP use, for multiple CNC machines are connected to LPT, and plotters both on COM and USB connection. In general, XP arranges, a very suitable system in the settings under its needs. The version of Firefox can be seen in a few days, because now in a mountain campaign, I write from the tablet when a cellular network appears. Thank you for supporting.

``` Therefore, the version of firefox 52.9.0 Chrome v 49.0.2623.112 Мersion of easyeda 6.4.20.9 In chrome, the components are rotated as needed, but the PCB window does not open. There is a PCB window, but it is empty. ```

I think your problems will only be solved by using up to date browsers. Can you try your project on somebody else's machine with a more up to date operating system? Are you are running 32 or 64 bit XP and how much RAM has your machine? If it's 64 bit, you could try running a Linux distribution from a Live USB stick to see if Linux would work for you before installing it instead of or alongside XP. If it's 32 bit, you could try running, for example, Linux Mint 19 from a Live USB stick. Linux Mint 19.3 is the last supported 32 bit version. It is supported until 2023. You can get it here: [https://linuxmint.com/edition.php?id=275](https://linuxmint.com/edition.php?id=275)<br> <br> Or you could do the same thing using MX Linux: [https://mxlinux.org/download-links/](https://mxlinux.org/download-links/)

``` 32 bit XP RAM 1Gb Thanks, but transition to Linux, and to fresher Windows is impossible - programs for cnc are written long ago by my acquaintance, and under other operating systems are not supported. I will install another PC. ```

Yeah, I think you need a new PC. Then you could install XP as a virtual machine on the new machine. Other possibility might be to get a newer 2nd hand machine, install Linux and then either install XP as a virtual machine on that or see if your CNC software will run under WINE on Linux.

``` The problem is that you need a real-time LPT port and the same com port. Due to various adapters it does not work. And now do not let out already with the correct LPT and com, unless for industrial decisions, and that already other money :( ```