diff --git a/package.json b/package.json
index 75f7653f6..a8827645d 100644
--- a/package.json
+++ b/package.json
@@ -264,7 +264,7 @@
     "@iconscout/react-unicons": "^1.1.6",
     "@internxt/inxt-js": "^2.0.8",
     "@internxt/lib": "^1.1.6",
-    "@internxt/sdk": "^1.4.33",
+    "@internxt/sdk": "^1.4.68",
     "@phosphor-icons/react": "2.0.9",
     "@radix-ui/react-select": "^1.2.2",
     "@sentry/electron": "^4.5.0",
diff --git a/src/apps/sync-engine/BindingManager.ts b/src/apps/sync-engine/BindingManager.ts
index 0c112941e..220a0083e 100644
--- a/src/apps/sync-engine/BindingManager.ts
+++ b/src/apps/sync-engine/BindingManager.ts
@@ -284,10 +284,15 @@ export class BindingsManager {
   }
 
   private async polling(): Promise<void> {
-    Logger.info('[SYNC ENGINE] Monitoring polling...');
-    const fileInPendingPaths =
-      (await this.container.virtualDrive.getPlaceholderWithStatePending()) as Array<string>;
-    Logger.info('[SYNC ENGINE] fileInPendingPaths', fileInPendingPaths);
-    await this.container.fileSyncOrchestrator.run(fileInPendingPaths);
+    try {
+      Logger.info('[SYNC ENGINE] Monitoring polling...');
+
+      const fileInPendingPaths =
+        (await this.container.virtualDrive.getPlaceholderWithStatePending()) as Array<string>;
+      Logger.info('[SYNC ENGINE] fileInPendingPaths', fileInPendingPaths);
+      await this.container.fileSyncOrchestrator.run(fileInPendingPaths);
+    } catch (error) {
+      Logger.error('[SYNC ENGINE] Polling', error);
+    }
   }
 }
diff --git a/src/apps/sync-engine/dependency-injection/files/builder.ts b/src/apps/sync-engine/dependency-injection/files/builder.ts
index 63f758eee..a1ff33e77 100644
--- a/src/apps/sync-engine/dependency-injection/files/builder.ts
+++ b/src/apps/sync-engine/dependency-injection/files/builder.ts
@@ -27,6 +27,7 @@ import { DependencyInjectionHttpClientsProvider } from '../common/clients';
 import { FileSyncronizer } from '../../../../context/virtual-drive/files/application/FileSyncronizer';
 import { FilePlaceholderConverter } from '../../../../context/virtual-drive/files/application/FIlePlaceholderConverter';
 import { FileSyncStatusUpdater } from '../../../../context/virtual-drive/files/application/FileSyncStatusUpdater';
+import { FileContentsUpdater } from '../../../../context/virtual-drive/files/application/FileContentsUpdater';
 
 export async function buildFilesContainer(
   folderContainer: FoldersContainer,
@@ -124,6 +125,11 @@ export async function buildFilesContainer(
 
   const fileSyncStatusUpdater = new FileSyncStatusUpdater(localFileSystem);
 
+  const fileContentsUpdater = new FileContentsUpdater(
+    repository,
+    remoteFileSystem
+  );
+
   const fileSyncronizer = new FileSyncronizer(
     repository,
     fileSyncStatusUpdater,
@@ -132,6 +138,7 @@ export async function buildFilesContainer(
     sharedContainer.absolutePathToRelativeConverter,
     folderContainer.folderCreator,
     folderContainer.offline.folderCreator,
+    fileContentsUpdater,
     folderContainer.foldersFatherSyncStatusUpdater
   );
 
diff --git a/src/context/shared/domain/ServerFile.ts b/src/context/shared/domain/ServerFile.ts
index 12e5e3a3e..5f70e3587 100644
--- a/src/context/shared/domain/ServerFile.ts
+++ b/src/context/shared/domain/ServerFile.ts
@@ -19,4 +19,5 @@ export type ServerFile = {
   userId: number;
   status: ServerFileStatus;
   plainName?: string;
+  uuid?: string;
 };
diff --git a/src/context/virtual-drive/boundaryBridge/application/FileSyncOrchestrator.ts b/src/context/virtual-drive/boundaryBridge/application/FileSyncOrchestrator.ts
index 80e9afc13..d6f342379 100644
--- a/src/context/virtual-drive/boundaryBridge/application/FileSyncOrchestrator.ts
+++ b/src/context/virtual-drive/boundaryBridge/application/FileSyncOrchestrator.ts
@@ -7,14 +7,12 @@ export class FileSyncOrchestrator {
     private readonly fileSyncronizer: FileSyncronizer
   ) {}
 
-  run(absolutePaths: string[]): Promise<void[]> {
-    return Promise.all(
-      absolutePaths.map(async (absolutePath) => {
-        await this.fileSyncronizer.run(
-          absolutePath,
-          this.contentsUploader.run.bind(this.contentsUploader)
-        );
-      })
-    );
+  async run(absolutePaths: string[]): Promise<void> {
+    for (const absolutePath of absolutePaths) {
+      await this.fileSyncronizer.run(
+        absolutePath,
+        this.contentsUploader.run.bind(this.contentsUploader)
+      );
+    }
   }
 }
diff --git a/src/context/virtual-drive/files/application/FileContentsUpdater.ts b/src/context/virtual-drive/files/application/FileContentsUpdater.ts
index e0a189bc9..809b368a7 100644
--- a/src/context/virtual-drive/files/application/FileContentsUpdater.ts
+++ b/src/context/virtual-drive/files/application/FileContentsUpdater.ts
@@ -1,13 +1,22 @@
-// import { FileRepository } from '../domain/FileRepository';
-// import { RemoteFileSystem } from '../domain/file-systems/RemoteFileSystem';
+import { File } from '../domain/File';
+import { FileRepository } from '../domain/FileRepository';
+import { RemoteFileSystem } from '../domain/file-systems/RemoteFileSystem';
+import Logger from 'electron-log';
 
-// export class FileContentsUpdater {
-//   constructor(
-//     private readonly repository: FileRepository,
-//     private readonly remote: RemoteFileSystem
-//   ) {}
+export class FileContentsUpdater {
+  constructor(
+    private readonly repository: FileRepository,
+    private readonly remote: RemoteFileSystem
+  ) {}
 
-//   async run(file: File): Promise<void> {
-//     await this.local.updateSyncStatus(file);
-//   }
-// }
+  async run(
+    file: File,
+    contentsId: File['contentsId'],
+    size: File['size']
+  ): Promise<File> {
+    Logger.info('Replace', file, contentsId, size);
+    await this.remote.replace(file, contentsId, size);
+    Logger.info('Updated', file, contentsId, size);
+    return this.repository.updateContentsAndSize(file, contentsId, size);
+  }
+}
diff --git a/src/context/virtual-drive/files/application/FileCreatorFromServerFile.ts b/src/context/virtual-drive/files/application/FileCreatorFromServerFile.ts
index 454a71441..dad957b45 100644
--- a/src/context/virtual-drive/files/application/FileCreatorFromServerFile.ts
+++ b/src/context/virtual-drive/files/application/FileCreatorFromServerFile.ts
@@ -14,5 +14,6 @@ export function createFileFromServerFile(
     updatedAt: server.updatedAt,
     path: relativePath,
     status: server.status,
+    uuid: server.uuid,
   });
 }
diff --git a/src/context/virtual-drive/files/application/FileSyncronizer.ts b/src/context/virtual-drive/files/application/FileSyncronizer.ts
index f38038945..e3088f942 100644
--- a/src/context/virtual-drive/files/application/FileSyncronizer.ts
+++ b/src/context/virtual-drive/files/application/FileSyncronizer.ts
@@ -15,8 +15,12 @@ import { File } from '../domain/File';
 import { FileSyncStatusUpdater } from './FileSyncStatusUpdater';
 import { FilePlaceholderConverter } from './FIlePlaceholderConverter';
 import { FoldersFatherSyncStatusUpdater } from '../../folders/application/FoldersFatherSyncStatusUpdater';
+import { FileContentsUpdater } from './FileContentsUpdater';
 
 export class FileSyncronizer {
+  // queue of files to be uploaded
+  private filePath: string | undefined;
+  private foldersPathQueue: string[] = [];
   constructor(
     private readonly repository: FileRepository,
     private readonly fileSyncStatusUpdater: FileSyncStatusUpdater,
@@ -25,13 +29,15 @@ export class FileSyncronizer {
     private readonly absolutePathToRelativeConverter: AbsolutePathToRelativeConverter,
     private readonly folderCreator: FolderCreator,
     private readonly offlineFolderCreator: OfflineFolderCreator,
+    private readonly fileContentsUpdater: FileContentsUpdater,
     private readonly foldersFatherSyncStatusUpdater: FoldersFatherSyncStatusUpdater
   ) {}
 
   async run(
     absolutePath: string,
     upload: (path: string) => Promise<RemoteFileContents>
-  ) {
+  ): Promise<void> {
+    this.filePath = absolutePath;
     const win32RelativePath =
       this.absolutePathToRelativeConverter.run(absolutePath);
 
@@ -45,9 +51,31 @@ export class FileSyncronizer {
       status: FileStatuses.EXISTS,
     });
 
+    await this.sync(
+      existingFile,
+      absolutePath,
+      posixRelativePath,
+      path,
+      upload
+    );
+  }
+
+  private async sync(
+    existingFile: File | undefined,
+    absolutePath: string,
+    posixRelativePath: string,
+    path: FilePath,
+    upload: (path: string) => Promise<RemoteFileContents>
+  ) {
     if (existingFile) {
       if (this.hasDifferentSize(existingFile, absolutePath)) {
-        return;
+        const contents = await upload(posixRelativePath);
+        existingFile = await this.fileContentsUpdater.run(
+          existingFile,
+          contents.id,
+          contents.size
+        );
+        Logger.info('existingFile ', existingFile);
       }
       await this.convertAndUpdateSyncStatus(existingFile);
     } else {
@@ -62,6 +90,7 @@ export class FileSyncronizer {
     attemps = 3
   ) => {
     try {
+      await new Promise((resolve) => setTimeout(resolve, 2000));
       const fileContents = await upload(posixRelativePath);
       const createdFile = await this.fileCreator.run(filePath, fileContents);
       await this.convertAndUpdateSyncStatus(createdFile);
@@ -93,15 +122,17 @@ export class FileSyncronizer {
     const posixDir =
       PlatformPathConverter.getFatherPathPosix(posixRelativePath);
     try {
-      await new Promise((resolve) => setTimeout(resolve, 1000));
+      await new Promise((resolve) => setTimeout(resolve, 4000));
       await this.runFolderCreator(posixDir);
     } catch (error) {
       Logger.error('Error creating folder father creation:', error);
       if (error instanceof FolderNotFoundError) {
+        this.foldersPathQueue.push(posixDir);
         // father created
         await this.createFolderFather(posixDir);
         // child created
-        await this.runFolderCreator(posixDir);
+        Logger.info('Creating child', posixDir);
+        await this.retryFolderCreation(posixDir);
       } else {
         Logger.error(
           'Error creating folder father creation inside catch:',
@@ -118,7 +149,22 @@ export class FileSyncronizer {
   }
 
   private async convertAndUpdateSyncStatus(file: File) {
-    await this.filePlaceholderConverter.run(file);
-    await this.fileSyncStatusUpdater.run(file);
+    await Promise.all([
+      this.filePlaceholderConverter.run(file),
+      this.fileSyncStatusUpdater.run(file),
+    ]);
   }
+
+  private retryFolderCreation = async (posixDir: string, attemps = 3) => {
+    try {
+      await new Promise((resolve) => setTimeout(resolve, 4000));
+      await this.runFolderCreator(posixDir);
+    } catch (error) {
+      Logger.error('Error creating folder father creation:', error);
+      if (attemps > 0) {
+        await this.retryFolderCreation(posixDir, attemps - 1);
+        return;
+      }
+    }
+  };
 }
diff --git a/src/context/virtual-drive/files/domain/File.ts b/src/context/virtual-drive/files/domain/File.ts
index e8f831024..0e501a749 100644
--- a/src/context/virtual-drive/files/domain/File.ts
+++ b/src/context/virtual-drive/files/domain/File.ts
@@ -15,6 +15,7 @@ import { FileRenamedDomainEvent } from './events/FileRenamedDomainEvent';
 import { FilePlaceholderId, createFilePlaceholderId } from './PlaceholderId';
 
 export type FileAttributes = {
+  uuid?: string;
   contentsId: string;
   folderId: number;
   createdAt: string;
@@ -27,10 +28,11 @@ export type FileAttributes = {
 
 export class File extends AggregateRoot {
   private constructor(
+    private _uuid: string,
     private _contentsId: ContentsId,
     private _folderId: number,
     private _path: FilePath,
-    private readonly _size: FileSize,
+    private _size: FileSize,
     public createdAt: Date,
     public updatedAt: Date,
     private _status: FileStatus
@@ -38,6 +40,10 @@ export class File extends AggregateRoot {
     super();
   }
 
+  public get uuid(): string {
+    return this._uuid;
+  }
+
   public get contentsId() {
     return this._contentsId.value;
   }
@@ -80,6 +86,7 @@ export class File extends AggregateRoot {
 
   static from(attributes: FileAttributes): File {
     return new File(
+      attributes.uuid ?? '',
       new ContentsId(attributes.contentsId),
       attributes.folderId,
       new FilePath(attributes.path),
@@ -97,6 +104,7 @@ export class File extends AggregateRoot {
     path: FilePath
   ): File {
     const file = new File(
+      '', // we should generate a uuid here
       new ContentsId(contentsId),
       folder.id,
       path,
@@ -183,8 +191,17 @@ export class File extends AggregateRoot {
     return this._status.is(status);
   }
 
+  replaceContestsAndSize(contentsId: string, size: number) {
+    this._contentsId = new ContentsId(contentsId);
+    this._size = new FileSize(size);
+    this.updatedAt = new Date();
+
+    return this;
+  }
+
   attributes(): FileAttributes {
     return {
+      uuid: this._uuid,
       contentsId: this.contentsId,
       folderId: this.folderId,
       createdAt: this.createdAt.toISOString(),
diff --git a/src/context/virtual-drive/files/domain/FileRepository.ts b/src/context/virtual-drive/files/domain/FileRepository.ts
index db12ab343..ef83cda81 100644
--- a/src/context/virtual-drive/files/domain/FileRepository.ts
+++ b/src/context/virtual-drive/files/domain/FileRepository.ts
@@ -10,4 +10,10 @@ export interface FileRepository {
   add(file: File): Promise<void>;
 
   update(file: File): Promise<void>;
+
+  updateContentsAndSize(
+    file: File,
+    newContentsId: File['contentsId'],
+    newSize: File['size']
+  ): Promise<File>;
 }
diff --git a/src/context/virtual-drive/files/domain/events/FileUpdateContentDomainEvent.ts b/src/context/virtual-drive/files/domain/events/FileUpdateContentDomainEvent.ts
new file mode 100644
index 000000000..d5651d7bc
--- /dev/null
+++ b/src/context/virtual-drive/files/domain/events/FileUpdateContentDomainEvent.ts
@@ -0,0 +1,40 @@
+import { DomainEvent } from '../../../../shared/domain/DomainEvent';
+
+export type CreatedWebdavFileDomainEventAttributes = {
+  readonly size: number;
+  readonly type: string;
+  readonly path: string;
+};
+
+export class FileUpdateContentDomainEvent extends DomainEvent {
+  static readonly EVENT_NAME = 'file.update.content';
+
+  readonly size: number;
+  readonly contentId: string;
+
+  constructor({
+    aggregateId,
+    eventId,
+    size,
+    contentId,
+  }: {
+    aggregateId: string;
+    eventId?: string;
+    size: number;
+    contentId: string;
+  }) {
+    super({
+      eventName: FileUpdateContentDomainEvent.EVENT_NAME,
+      aggregateId,
+      eventId,
+    });
+    this.size = size;
+    this.contentId = contentId;
+  }
+
+  toPrimitives() {
+    const { size, contentId } = this;
+
+    return { size, contentId };
+  }
+}
diff --git a/src/context/virtual-drive/files/domain/file-systems/RemoteFileSystem.ts b/src/context/virtual-drive/files/domain/file-systems/RemoteFileSystem.ts
index 9573f252c..979af014c 100644
--- a/src/context/virtual-drive/files/domain/file-systems/RemoteFileSystem.ts
+++ b/src/context/virtual-drive/files/domain/file-systems/RemoteFileSystem.ts
@@ -9,4 +9,10 @@ export interface RemoteFileSystem {
   move(file: File): Promise<void>;
 
   rename(file: File): Promise<void>;
+
+  replace(
+    file: File,
+    newContentsId: File['contentsId'],
+    newSize: File['size']
+  ): Promise<void>;
 }
diff --git a/src/context/virtual-drive/files/infrastructure/InMemoryFileRepository.ts b/src/context/virtual-drive/files/infrastructure/InMemoryFileRepository.ts
index cc7623820..92233f961 100644
--- a/src/context/virtual-drive/files/infrastructure/InMemoryFileRepository.ts
+++ b/src/context/virtual-drive/files/infrastructure/InMemoryFileRepository.ts
@@ -60,4 +60,19 @@ export class InMemoryFileRepository implements FileRepository {
 
     return this.add(file);
   }
+
+  async updateContentsAndSize(
+    file: File,
+    newContentsId: File['contentsId'],
+    newSize: File['size']
+  ): Promise<File> {
+    if (!this.files.has(file.contentsId)) {
+      throw new Error('File not found');
+    }
+
+    const updatedFile = file.replaceContestsAndSize(newContentsId, newSize);
+    this.files.set(updatedFile.contentsId, updatedFile.attributes());
+    this.files.delete(file.contentsId);
+    return updatedFile;
+  }
 }
diff --git a/src/context/virtual-drive/files/infrastructure/SDKRemoteFileSystem.ts b/src/context/virtual-drive/files/infrastructure/SDKRemoteFileSystem.ts
index 6208baced..7bc0facc9 100644
--- a/src/context/virtual-drive/files/infrastructure/SDKRemoteFileSystem.ts
+++ b/src/context/virtual-drive/files/infrastructure/SDKRemoteFileSystem.ts
@@ -85,4 +85,18 @@ export class SDKRemoteFileSystem implements RemoteFileSystem {
       bucketId: this.bucket,
     });
   }
+
+  async replace(
+    file: File,
+    newContentsId: File['contentsId'],
+    newSize: File['size']
+  ): Promise<void> {
+    await this.clients.newDrive.put(
+      `${process.env.NEW_DRIVE_URL}/drive/files/${file.uuid}`,
+      {
+        fileId: newContentsId,
+        size: newSize,
+      }
+    );
+  }
 }
diff --git a/src/context/virtual-drive/items/application/RemoteItemsGenerator.ts b/src/context/virtual-drive/items/application/RemoteItemsGenerator.ts
index fb09c825e..e4f2510e6 100644
--- a/src/context/virtual-drive/items/application/RemoteItemsGenerator.ts
+++ b/src/context/virtual-drive/items/application/RemoteItemsGenerator.ts
@@ -32,6 +32,7 @@ export class RemoteItemsGenerator {
         updatedAt: updatedFile.updatedAt,
         userId: updatedFile.userId,
         status: updatedFile.status as ServerFileStatus,
+        uuid: updatedFile.uuid,
       };
     });