@magge I reinstalled and unchecked the read only box on the folder. The same errors come up.

Alright, I may have found a solution.
Step 1: Try and reverify your genuine copy of FA.
Step 2: "Make sure the flash message below states you are connected" If it states that the account is connected to another account name, there's your problem. Note the name.
Step 3: log in through the client which will send you to a website to log in.
Step 4: enter the name you recorded as your username and login. The password doesn't need to change.
Step 5: finally access your client.

@magge I reinstalled and unchecked the read only box on the folder. The same errors come up.

@magge I've turned off real time protection in windows security but still have the same errors. I'm on windows 10.

Hello, I'm having issues with starting up the client itself.
Firstly, it appears that I have access-denied issues shown in log 1. I figured if the client has admin clearance It would fix this issue. It did, the client ran but then I got a login issue shown in log 2. Any help would be appreciated.

Log 1:
java.lang.RuntimeException: Exception in Application init method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:896)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:196)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'asyncConfig' defined in URL [jar:file:/D:/Games/FAF%20Client/lib/faf-client-2023.1.2-plain.jar!/com/faforever/client/config/AsyncConfig.class]: Unsatisfied dependency expressed through constructor parameter 0: Error creating bean with name 'notificationService' defined in URL [jar:file:/D:/Games/FAF%20Client/lib/faf-client-2023.1.2-plain.jar!/com/faforever/client/notification/NotificationService.class]: Unsatisfied dependency expressed through constructor parameter 1: Error creating bean with name 'i18n' defined in URL [jar:file:/D:/Games/FAF%20Client/lib/faf-client-2023.1.2-plain.jar!/com/faforever/client/i18n/I18n.class]: Unsatisfied dependency expressed through constructor parameter 1: Error creating bean with name 'preferencesService' defined in URL [jar:file:/D:/Games/FAF%20Client/lib/faf-client-2023.1.2-plain.jar!/com/faforever/client/preferences/PreferencesService.class]: Failed to create temporary file for /com/sun/jna/win32-x86-64/jnidispatch.dll library: Access is denied
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:245)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1344)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1188)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:561)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:415)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1324)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1161)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:561)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:205)
at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:273)
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:761)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:568)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:432)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:150)
at com.faforever.client.FafClientApplication.init(FafClientApplication.java:80)
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:825)
... 2 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'notificationService' defined in URL [jar:file:/D:/Games/FAF%20Client/lib/faf-client-2023.1.2-plain.jar!/com/faforever/client/notification/NotificationService.class]: Unsatisfied dependency expressed through constructor parameter 1: Error creating bean with name 'i18n' defined in URL [jar:file:/D:/Games/FAF%20Client/lib/faf-client-2023.1.2-plain.jar!/com/faforever/client/i18n/I18n.class]: Unsatisfied dependency expressed through constructor parameter 1: Error creating bean with name 'preferencesService' defined in URL [jar:file:/D:/Games/FAF%20Client/lib/faf-client-2023.1.2-plain.jar!/com/faforever/client/preferences/PreferencesService.class]: Failed to create temporary file for /com/sun/jna/win32-x86-64/jnidispatch.dll library: Access is denied
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:245)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1344)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1188)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:561)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1405)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1325)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789)
... 29 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'i18n' defined in URL [jar:file:/D:/Games/FAF%20Client/lib/faf-client-2023.1.2-plain.jar!/com/faforever/client/i18n/I18n.class]: Unsatisfied dependency expressed through constructor parameter 1: Error creating bean with name 'preferencesService' defined in URL [jar:file:/D:/Games/FAF%20Client/lib/faf-client-2023.1.2-plain.jar!/com/faforever/client/preferences/PreferencesService.class]: Failed to create temporary file for /com/sun/jna/win32-x86-64/jnidispatch.dll library: Access is denied
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:798)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:245)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1344)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1188)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:561)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1405)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1325)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789)
... 43 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'preferencesService' defined in URL [jar:file:/D:/Games/FAF%20Client/lib/faf-client-2023.1.2-plain.jar!/com/faforever/client/preferences/PreferencesService.class]: Failed to create temporary file for /com/sun/jna/win32-x86-64/jnidispatch.dll library: Access is denied
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1751)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:599)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1405)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1325)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:885)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789)
... 57 more
Caused by: java.lang.UnsatisfiedLinkError: Failed to create temporary file for /com/sun/jna/win32-x86-64/jnidispatch.dll library: Access is denied
at com.sun.jna.Native.loadNativeDispatchLibraryFromClasspath(Native.java:1039)
at com.sun.jna.Native.loadNativeDispatchLibrary(Native.java:999)
at com.sun.jna.Native.<clinit>(Native.java:191)
at com.sun.jna.platform.win32.Shell32.<clinit>(Shell32.java:48)
at com.sun.jna.platform.win32.Shell32Util.getFolderPath(Shell32Util.java:55)
at com.sun.jna.platform.win32.Shell32Util.getFolderPath(Shell32Util.java:71)
at com.faforever.client.os.OsWindows.getDefaultDataDirectory(OsWindows.java:93)
at com.faforever.client.preferences.PreferencesService.initializePreferences(PreferencesService.java:152)
at com.faforever.client.preferences.PreferencesService.afterPropertiesSet(PreferencesService.java:135)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1797)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1747)
... 68 more

Log 2:
Client Version: 2023.1.2
com.faforever.client.login.TokenRetrievalException: {"error":"invalid_grant","error_description":"The provided authorization grant (e.g., authorization code, resource owner credentials) or refresh token is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client."}
at com.faforever.client.api.TokenService.lambda$retrieveToken$5(TokenService.java:124)
Suppressed: The stacktrace has been enhanced by Reactor, refer to additional information below:
Error has been observed at the following site(s):
*__checkpoint ⇢ 400 BAD_REQUEST from POST https://hydra.faforever.com/oauth2/token [DefaultWebClient]
Original Stack Trace:
at com.faforever.client.api.TokenService.lambda$retrieveToken$5(TokenService.java:124)
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:132)
at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:107)
at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onNext(FluxMapFuseable.java:299)
at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.onNext(FluxFilterFuseable.java:337)
at reactor.core.publisher.Operators$BaseFluxToMonoOperator.completePossiblyEmpty(Operators.java:2071)
at reactor.core.publisher.MonoCollect$CollectSubscriber.onComplete(MonoCollect.java:145)
at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144)
at reactor.core.publisher.FluxPeek$PeekSubscriber.onComplete(FluxPeek.java:260)
at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144)
at reactor.netty.channel.FluxReceive.onInboundComplete(FluxReceive.java:415)
at reactor.netty.channel.ChannelOperations.onInboundComplete(ChannelOperations.java:431)
at reactor.netty.channel.ChannelOperations.terminate(ChannelOperations.java:485)
at reactor.netty.http.client.HttpClientOperations.onInboundNext(HttpClientOperations.java:712)
at reactor.netty.channel.ChannelOperationsHandler.channelRead(ChannelOperationsHandler.java:113)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436)
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346)
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318)
at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1373)
at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1236)
at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1285)
at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:529)
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:468)
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:290)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:833)
Edit: log numbers were switched.